diff --git a/CHANGELOG.md b/CHANGELOG.md
index 745151b3..d1f4b461 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+# v6.13.1
+- [#2468](https://github.com/xmrig/xmrig/pull/2468) Fixed regression in previous version: don't send miner signature during regular mining.
+
 # v6.13.0
 - [#2445](https://github.com/xmrig/xmrig/pull/2445) Added support for solo mining with miner signatures for the upcoming Wownero fork.
 
diff --git a/src/backend/cpu/CpuWorker.cpp b/src/backend/cpu/CpuWorker.cpp
index fc7d8bf3..085bccb6 100644
--- a/src/backend/cpu/CpuWorker.cpp
+++ b/src/backend/cpu/CpuWorker.cpp
@@ -329,7 +329,7 @@ void xmrig::CpuWorker<N>::start()
                     else
 #                   endif
                     if (value < job.target()) {
-                        JobResults::submit(job, current_job_nonces[i], m_hash + (i * 32), miner_signature_saved);
+                        JobResults::submit(job, current_job_nonces[i], m_hash + (i * 32), job.hasMinerSignature() ? miner_signature_saved : nullptr);
                     }
                 }
                 m_count += N;
diff --git a/src/version.h b/src/version.h
index 7641dc5c..a54fab1a 100644
--- a/src/version.h
+++ b/src/version.h
@@ -28,7 +28,7 @@
 #define APP_ID        "xmrig"
 #define APP_NAME      "XMRig"
 #define APP_DESC      "XMRig miner"
-#define APP_VERSION   "6.13.0"
+#define APP_VERSION   "6.13.1-dev"
 #define APP_DOMAIN    "xmrig.com"
 #define APP_SITE      "www.xmrig.com"
 #define APP_COPYRIGHT "Copyright (C) 2016-2021 xmrig.com"
@@ -36,7 +36,7 @@
 
 #define APP_VER_MAJOR  6
 #define APP_VER_MINOR  13
-#define APP_VER_PATCH  0
+#define APP_VER_PATCH  1
 
 #ifdef _MSC_VER
 #   if (_MSC_VER >= 1920)