diff --git a/src/detect-stream_size.c b/src/detect-stream_size.c
index 86aabd77c8e8..50cd15af2d35 100644
--- a/src/detect-stream_size.c
+++ b/src/detect-stream_size.c
@@ -216,7 +216,7 @@ static bool PrefilterPacketStreamSizeCompare(PrefilterPacketHeaderValue v, void
 
 static int PrefilterSetupStreamSize(DetectEngineCtx *de_ctx, SigGroupHead *sgh)
 {
-    return PrefilterSetupPacketHeader(de_ctx, sgh, DETECT_TCPMSS, PrefilterPacketStreamSizeSet,
+    return PrefilterSetupPacketHeader(de_ctx, sgh, DETECT_STREAM_SIZE, PrefilterPacketStreamSizeSet,
             PrefilterPacketStreamSizeCompare, PrefilterPacketStreamsizeMatch);
 }