diff --git a/src/App.cpp b/src/App.cpp
index 28e61df31..83ead3af6 100644
--- a/src/App.cpp
+++ b/src/App.cpp
@@ -81,7 +81,7 @@ App::App(int argc, char **argv) :
     }
 #   endif
 
-    Platform::init();
+    Platform::init(m_options->userAgent());
     Platform::setProcessPriority(m_options->priority());
 
     m_network = new Network(m_options);
diff --git a/src/Options.cpp b/src/Options.cpp
index 9d2e35042..95d099d51 100644
--- a/src/Options.cpp
+++ b/src/Options.cpp
@@ -67,6 +67,7 @@ Options:\n\
       --cpu-priority    set process priority (0 idle, 2 normal to 5 highest)\n\
       --no-color        disable colored output\n\
       --donate-level=N  donate level, default 5%% (5 minutes in 100 minutes)\n\
+      --user-agent      set custom user-agent string for pool\n\
   -B, --background      run the miner in the background\n\
   -c, --config=FILE     load a JSON-format configuration file\n\
   -l, --log-file=FILE   log all output to a file\n"
@@ -110,6 +111,7 @@ static struct option const options[] = {
     { "threads",       1, nullptr, 't'  },
     { "url",           1, nullptr, 'o'  },
     { "user",          1, nullptr, 'u'  },
+    { "user-agent",    1, nullptr, 1008 },
     { "userpass",      1, nullptr, 'O'  },
     { "version",       0, nullptr, 'V'  },
     { 0, 0, 0, 0 }
@@ -120,6 +122,7 @@ static struct option const config_options[] = {
     { "algo",          1, nullptr, 'a'  },
     { "av",            1, nullptr, 'v'  },
     { "background",    0, nullptr, 'B'  },
+    { "colors",        0, nullptr, 2000 },
     { "cpu-affinity",  1, nullptr, 1020 },
     { "cpu-priority",  1, nullptr, 1021 },
     { "donate-level",  1, nullptr, 1003 },
@@ -131,7 +134,7 @@ static struct option const config_options[] = {
     { "safe",          0, nullptr, 1005 },
     { "syslog",        0, nullptr, 'S'  },
     { "threads",       1, nullptr, 't'  },
-    { "colors",        0, nullptr, 2000 },
+    { "user-agent",    1, nullptr, 1008 },
     { 0, 0, 0, 0 }
 };
 
@@ -182,6 +185,7 @@ Options::Options(int argc, char **argv) :
     m_safe(false),
     m_syslog(false),
     m_logFile(nullptr),
+    m_userAgent(nullptr),
     m_algo(0),
     m_algoVariant(0),
     m_donateLevel(kDonateLevel),
@@ -329,6 +333,11 @@ bool Options::parseArg(int key, const char *arg)
             return parseArg(key, p ? strtoull(p, nullptr, 16) : strtoull(arg, nullptr, 10));
         }
 
+    case 1008: /* --user-agent */
+        free(m_userAgent);
+        m_userAgent = strdup(arg);
+        break;
+
     default:
         showUsage(1);
         return false;
diff --git a/src/Options.h b/src/Options.h
index 0e57100e3..ae2a29285 100644
--- a/src/Options.h
+++ b/src/Options.h
@@ -59,6 +59,7 @@ public:
     inline bool doubleHash() const                { return m_doubleHash; }
     inline bool syslog() const                    { return m_syslog; }
     inline const char *logFile() const            { return m_logFile; }
+    inline const char *userAgent() const          { return m_userAgent; }
     inline const std::vector<Url*> &pools() const { return m_pools; }
     inline int algo() const                       { return m_algo; }
     inline int algoVariant() const                { return m_algoVariant; }
@@ -105,6 +106,7 @@ private:
     bool m_safe;
     bool m_syslog;
     char *m_logFile;
+    char *m_userAgent;
     int m_algo;
     int m_algoVariant;
     int m_donateLevel;
diff --git a/src/Platform.h b/src/Platform.h
index 1c1d5ce9d..87c8cc4db 100644
--- a/src/Platform.h
+++ b/src/Platform.h
@@ -29,7 +29,7 @@ class Platform
 {
 public:
     static const char *defaultConfigName();
-    static void init();
+    static void init(const char *userAgent);
     static void release();
     static void setProcessPriority(int priority);
     static void setThreadPriority(int priority);
diff --git a/src/Platform_mac.cpp b/src/Platform_mac.cpp
index f57c7ea1c..3b5daef59 100644
--- a/src/Platform_mac.cpp
+++ b/src/Platform_mac.cpp
@@ -42,9 +42,9 @@ static inline char *createUserAgent()
 }
 
 
-void Platform::init()
+void Platform::init(const char *userAgent)
 {
-    m_userAgent = createUserAgent();
+    m_userAgent = userAgent ? strdup(userAgent) : createUserAgent();
 }
 
 
diff --git a/src/Platform_unix.cpp b/src/Platform_unix.cpp
index 0873e954c..5a8271aba 100644
--- a/src/Platform_unix.cpp
+++ b/src/Platform_unix.cpp
@@ -53,9 +53,9 @@ static inline char *createUserAgent()
 }
 
 
-void Platform::init()
+void Platform::init(const char *userAgent)
 {
-    m_userAgent = createUserAgent();
+    m_userAgent = userAgent ? strdup(userAgent) : createUserAgent();
 }
 
 
diff --git a/src/Platform_win.cpp b/src/Platform_win.cpp
index 3d520586a..e61dc7735 100644
--- a/src/Platform_win.cpp
+++ b/src/Platform_win.cpp
@@ -73,9 +73,9 @@ static inline char *createUserAgent()
 }
 
 
-void Platform::init()
+void Platform::init(const char *userAgent)
 {
-    m_userAgent = createUserAgent();
+    m_userAgent = userAgent ? strdup(userAgent) : createUserAgent();
 }