diff --git a/common/log.cpp b/common/log.cpp
index 04c7c0ed1..0b8994ae1 100644
--- a/common/log.cpp
+++ b/common/log.cpp
@@ -206,6 +206,7 @@ public:
                 vsnprintf(entry.msg.data(), entry.msg.size(), ss.str().c_str(), args_copy);
             }
 #endif
+            va_end(args_copy);
         }
 
         entry.level = level;