diff --git a/internal/app/util.go b/internal/app/util.go
index 7c3dca9a..1b71b020 100644
--- a/internal/app/util.go
+++ b/internal/app/util.go
@@ -249,9 +249,9 @@ func isSplitBrained(slaveGtidSet, masterGtidSet *gomysql.MysqlGTIDSet, masterUUI
 			continue
 		}
 
-		return false
+		return true
 	}
-	return true
+	return false
 }
 
 func validatePriority(priority *int64) error {