diff --git a/libavcodec/common.h b/libavcodec/common.h
index a9ed4909a7a1028f58e867d070a9fc55a04597e7..d6d5cf28510c22e573fb477bb961e539cbbd94f1 100644
--- a/libavcodec/common.h
+++ b/libavcodec/common.h
@@ -976,7 +976,7 @@ static inline int get_xbits_trace(GetBitContext *s, int n, char *file, char *fun
 #define tprintf printf
 
 #else //TRACE
-#define tprintf(_arg...) {}
+#define tprintf(...) {}
 #endif
 
 /* define it to include statistics code (useful only for optimizing