diff --git a/src/core/frame.h b/src/core/frame.h
index 043933feb0..86346aabce 100644
--- a/src/core/frame.h
+++ b/src/core/frame.h
@@ -173,7 +173,7 @@ typedef enum QUIC_FRAME_TYPE {
       X == QUIC_FRAME_ACK_FREQUENCY || X == QUIC_FRAME_IMMEDIATE_ACK || \
       X == QUIC_FRAME_RELIABLE_RESET_STREAM || \
       X == QUIC_FRAME_TIMESTAMP || \
-      X == QUIC_FRAME_OBSERVED_ADDRESS_V4 || X == QUIC_FRAME_OBSERVED_ADDRESS_V6
+      X == QUIC_FRAME_OBSERVED_ADDRESS_V4 || X == QUIC_FRAME_OBSERVED_ADDRESS_V6 \
     )
 
 //