diff --git a/CHANGELOG.md b/CHANGELOG.md
index aeadf9f97..ef91b561d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+# v0.8.1
+- Added nicehash support, detects automaticaly by pool URL, for example `cryptonight.eu.nicehash.com:3355` or manually via option `--nicehash`.
+
 # v0.8.0
 - Added double hash mode, also known as lower power mode. `--av=2` and `--av=4`.
 - Added smart automatic CPU configuration. Default threads count now depends on size of the L3 cache of CPU.
diff --git a/README.md b/README.md
index 6137945cb..fb3f44e2a 100644
--- a/README.md
+++ b/README.md
@@ -24,6 +24,7 @@ Based on cpuminer-multi with heavy optimizations/rewrites and removing a lot of
 * Command line options compatible with cpuminer.
 * CryptoNight-Lite support for AEON.
 * Smart automatic [CPU configuration](https://github.com/xmrig/xmrig/wiki/Threads).
+* Nicehash support
 * It's open source software.
 
 ## Download
@@ -57,6 +58,7 @@ xmrig.exe -o xmr-eu.dwarfpool.com:8005 -u YOUR_WALLET -p x -k
   -c, --config=FILE     load a JSON-format configuration file
       --max-cpu-usage=N maximum cpu usage for automatic threads mode (default 75)
       --safe            safe adjust threads and av settings for current cpu
+      --nicehash        enable nicehash support
   -h, --help            display this help and exit
   -V, --version         output version information and exit
 ```
diff --git a/options.c b/options.c
index b13a579c9..eb88bcb0f 100644
--- a/options.c
+++ b/options.c
@@ -48,6 +48,7 @@ bool    opt_keepalive     = false;
 bool    opt_background    = false;
 bool    opt_double_hash   = false;
 bool    opt_safe          = false;
+bool    opt_nicehash      = false;
 char    *opt_url          = NULL;
 char    *opt_backup_url   = NULL;
 char    *opt_userpass     = NULL;
@@ -78,6 +79,7 @@ Options:\n\
   -c, --config=FILE     load a JSON-format configuration file\n\
       --max-cpu-usage=N maximum CPU usage for automatic threads mode (default 75)\n\
       --safe            safe adjust threads and av settings for current CPU\n\
+      --nicehash        enable nicehash support\n\
   -h, --help            display this help and exit\n\
   -V, --version         output version information and exit\n\
 ";
@@ -97,6 +99,7 @@ static struct option const options[] = {
     { "help",          0, NULL, 'h'  },
     { "keepalive",     0, NULL ,'k'  },
     { "max-cpu-usage", 1, NULL, 1004 },
+    { "nicehash",      0, NULL, 1006 },
     { "no-color",      0, NULL, 1002 },
     { "pass",          1, NULL, 'p'  },
     { "retries",       1, NULL, 'r'  },
@@ -331,6 +334,10 @@ static void parse_arg(int key, char *arg) {
         opt_donate_level = v;
         break;
 
+    case 1006: /* --nicehash */
+        opt_nicehash = true;
+        break;
+
     default:
         show_usage_and_exit(1);
     }
@@ -435,6 +442,10 @@ void parse_cmdline(int argc, char *argv[]) {
         proper_exit(1);
     }
 
+    if (strstr(opt_url, ".nicehash.com:") != NULL) {
+        opt_nicehash = true;
+    }
+
     if (!opt_userpass) {
         opt_userpass = malloc(strlen(opt_user) + strlen(opt_pass) + 2);
         if (!opt_userpass) {
diff --git a/options.h b/options.h
index 2cc419158..a14aaeeb4 100644
--- a/options.h
+++ b/options.h
@@ -65,6 +65,7 @@ extern bool opt_keepalive;
 extern bool opt_background;
 extern bool opt_double_hash;
 extern bool opt_safe;
+extern bool opt_nicehash;
 extern char *opt_url;
 extern char *opt_backup_url;
 extern char *opt_userpass;
diff --git a/stratum.c b/stratum.c
index 71d868ec6..1f2a4b8e6 100644
--- a/stratum.c
+++ b/stratum.c
@@ -238,8 +238,14 @@ bool stratum_handle_response(char *buf) {
     json_t *id_val = json_object_get(val, "id");
 
     if (!id_val || json_is_null(id_val) || !res_val) {
-       json_decref(val);
-       return false;
+        const char* message;
+
+        if (json_is_object(err_val) && (message = json_string_value(json_object_get(err_val, "message")))) {
+            applog(LOG_ERR, "error: \"%s\"", message);
+        }
+
+        json_decref(val);
+        return false;
     }
 
     json_t *status = json_object_get(res_val, "status");
@@ -288,7 +294,6 @@ bool stratum_keepalived(struct stratum_ctx *sctx)
 bool stratum_authorize(struct stratum_ctx *sctx, const char *user, const char *pass)
 {
     char *sret;
-    json_error_t err;
 
     char *req = malloc(128 + strlen(user) + strlen(pass));
     sprintf(req, "{\"method\":\"login\",\"params\":{\"login\":\"%s\",\"pass\":\"%s\",\"agent\":\"%s/%s\"},\"id\":1}", user, pass, APP_NAME, APP_VERSION);
@@ -324,7 +329,15 @@ bool stratum_authorize(struct stratum_ctx *sctx, const char *user, const char *p
     json_t *error  = json_object_get(val, "error");
 
     if (!result || json_is_false(result) || (error && !json_is_null(error)))  {
-        applog(LOG_ERR, "Stratum authentication failed");
+        const char* message;
+
+        if (json_is_object(error) && (message = json_string_value(json_object_get(error, "message")))) {
+            applog(LOG_ERR, "Stratum authentication failed: \"%s\"", message);
+        }
+        else {
+            applog(LOG_ERR, "Stratum authentication failed");
+        }
+
         json_decref(val);
         return false;
     }
diff --git a/utils/summary.c b/utils/summary.c
index e5490a912..65912bb0b 100644
--- a/utils/summary.c
+++ b/utils/summary.c
@@ -71,11 +71,16 @@ static void print_cpu() {
 
 
 static void print_threads() {
+    const char *extra = "";
+    if (opt_nicehash) {
+        extra = ", nicehash";
+    }
+
     if (opt_colors) {
-        applog_notime(LOG_INFO, CL_LGR " * " CL_WHT "THREADS:      " CL_WHT "%d" CL_WHT ", av=%d, %s, donate=%d%%", opt_n_threads, opt_algo_variant, get_current_algo_name(), opt_donate_level);
+        applog_notime(LOG_INFO, CL_LGR " * " CL_WHT "THREADS:      " CL_WHT "%d" CL_WHT ", av=%d, %s, donate=%d%%%s", opt_n_threads, opt_algo_variant, get_current_algo_name(), opt_donate_level, extra);
     }
     else {
-        applog_notime(LOG_INFO, " * THREADS:      %d, av=%d, %s, donate=%d%%", opt_n_threads, opt_algo_variant, get_current_algo_name(), opt_donate_level);
+        applog_notime(LOG_INFO, " * THREADS:      %d, av=%d, %s, donate=%d%%%s", opt_n_threads, opt_algo_variant, get_current_algo_name(), opt_donate_level, extra);
     }
 }
 
diff --git a/version.h b/version.h
index 301e3f453..8804e2713 100644
--- a/version.h
+++ b/version.h
@@ -27,14 +27,14 @@
 #define APP_ID        "xmrig"
 #define APP_NAME      "XMRig"
 #define APP_DESC      "Monero (XMR) CPU miner"
-#define APP_VERSION   "0.8.0"
+#define APP_VERSION   "0.8.1"
 #define APP_DOMAIN    "xmrig.com"
 #define APP_SITE      "www.xmrig.com"
 #define APP_COPYRIGHT "Copyright (C) 2016-2017 xmrig.com"
 
 #define APP_VER_MAJOR  0
 #define APP_VER_MINOR  8
-#define APP_VER_BUILD  0
+#define APP_VER_BUILD  1
 #define APP_VER_REV    0
 
 #endif /* __VERSION_H__ */
diff --git a/xmrig.c b/xmrig.c
index 5aeb04c5c..d3c423a50 100644
--- a/xmrig.c
+++ b/xmrig.c
@@ -280,7 +280,14 @@ static void *miner_thread(void *userdata) {
         if (memcmp(work.job_id, stratum_ctx->g_work.job_id, 64)) {
             work_copy(&work, &stratum_ctx->g_work);
             nonceptr = (uint32_t*) (((char*) work.blob) + 39);
-            *nonceptr = 0xffffffffU / opt_n_threads * thr_id;
+
+            if (opt_nicehash) {
+                end_nonce = (*nonceptr & 0xff000000U) + (0xffffffU / opt_n_threads * (thr_id + 1) - 0x20);
+                *nonceptr = (*nonceptr & 0xff000000U) + (0xffffffU / opt_n_threads * thr_id);
+            }
+            else {
+                *nonceptr = 0xffffffffU / opt_n_threads * thr_id;
+            }
         }
 
         pthread_mutex_unlock(&stratum_ctx->work_lock);
@@ -356,8 +363,15 @@ static void *miner_thread_double(void *userdata) {
             nonceptr0 = (uint32_t*) (((char*) double_blob) + 39);
             nonceptr1 = (uint32_t*) (((char*) double_blob) + 39 + work.blob_size);
 
-            *nonceptr0 = 0xffffffffU / (opt_n_threads * 2) * thr_id;
-            *nonceptr1 = 0xffffffffU / (opt_n_threads * 2) * (thr_id + opt_n_threads);
+            if (opt_nicehash) {
+                end_nonce = (*nonceptr0 & 0xff000000U) + (0xffffffU / (opt_n_threads * 2) * (thr_id + 1) - 0x20);
+                *nonceptr0 = (*nonceptr0 & 0xff000000U) + (0xffffffU / (opt_n_threads * 2) * thr_id);
+                *nonceptr1 = (*nonceptr1 & 0xff000000U) + (0xffffffU / (opt_n_threads * 2) * (thr_id + opt_n_threads));
+            }
+            else {
+                *nonceptr0 = 0xffffffffU / (opt_n_threads * 2) * thr_id;
+                *nonceptr1 = 0xffffffffU / (opt_n_threads * 2) * (thr_id + opt_n_threads);
+            }
         }
 
         pthread_mutex_unlock(&stratum_ctx->work_lock);