diff --git a/src/main/java/org/tikv/common/codec/RowV2.java b/src/main/java/org/tikv/common/codec/RowV2.java
index 44891e4e917..6893894a7bd 100644
--- a/src/main/java/org/tikv/common/codec/RowV2.java
+++ b/src/main/java/org/tikv/common/codec/RowV2.java
@@ -147,7 +147,7 @@ private int binarySearch(int i, int j, long colID) {
       if (this.large) {
         v = this.colIDs32[h];
       } else {
-        v = this.colIDs[h];
+        v = this.colIDs[h] & 0xFF;
       }
       if (v < colID) {
         i = h + 1;