diff --git a/src/backend/utils/adt/rowtypes.c b/src/backend/utils/adt/rowtypes.c
index ae007cfe31..cb04a724d3 100644
--- a/src/backend/utils/adt/rowtypes.c
+++ b/src/backend/utils/adt/rowtypes.c
@@ -1430,7 +1430,7 @@ record_image_cmp(FunctionCallInfo fcinfo)
 		 */
 		if (!nulls1[i1] || !nulls2[i2])
 		{
-			int			cmpresult;
+			int			cmpresult = 0;
 
 			if (nulls1[i1])
 			{