diff --git a/types/convert.go b/types/convert.go
index ff265aa37d255..4764e62dd1c7e 100644
--- a/types/convert.go
+++ b/types/convert.go
@@ -209,7 +209,7 @@ func convertDecimalStrToUint(sc *stmtctx.StatementContext, str string, upperBoun
 		intStr = "0"
 	}
 	if sc.ShouldClipToZero() && intStr[0] == '-' {
-		return 0, overflow(str, tp)
+		return 0, overflow(intStr, tp)
 	}
 
 	var round uint64