1 files changed, 1 insertions, 1 deletions
diff --git a/tests/test-visitor-serialization.c b/tests/test-visitor-serialization.c
index 438c18a0d6..d18d90db2c 100644
--- a/tests/test-visitor-serialization.c
+++ b/tests/test-visitor-serialization.c
@@ -1115,7 +1115,7 @@ static const SerializeOps visitors[] = {
 
 static void add_visitor_type(const SerializeOps *ops)
 {
-    char testname_prefix[128];
+    char testname_prefix[32];
     char testname[128];
     TestArgs *args;
     int i = 0;