diff --git a/src/opus.c b/src/opus.c
index 791ec09f26fa0bc1c904f7d2c91c1a2ad0ac0201..9f3a4ecf74ca785363b99febbe38828f3753498f 100644
--- a/src/opus.c
+++ b/src/opus.c
@@ -55,5 +55,9 @@ const char *opus_strerror(int error)
 
 const char *opus_get_version_string(void)
 {
-	return "libopus " OPUS_VERSION;
+	return "libopus " OPUS_VERSION
+#ifdef FUZZING
+	      "-fuzzing"
+#endif
+	      ;
 }