diff --git a/hapsigntool/hap_sign_tool_lib/src/main/java/com/ohos/hapsigntool/codesigning/fsverity/MerkleTreeBuilder.java b/hapsigntool/hap_sign_tool_lib/src/main/java/com/ohos/hapsigntool/codesigning/fsverity/MerkleTreeBuilder.java
index 90531c52abff999cfc3e2f7272cb0b24128ced02..6c5f2731e2ba0f80e56a2bf6d0f0c3a9081b03f4 100644
--- a/hapsigntool/hap_sign_tool_lib/src/main/java/com/ohos/hapsigntool/codesigning/fsverity/MerkleTreeBuilder.java
+++ b/hapsigntool/hap_sign_tool_lib/src/main/java/com/ohos/hapsigntool/codesigning/fsverity/MerkleTreeBuilder.java
@@ -306,7 +306,7 @@ public class MerkleTreeBuilder implements AutoCloseable {
         dataBuffer.flip();
         byte[] rootHash = null;
         byte[] tree = null;
-        if (inputDataSize < FSVERITY_HASH_PAGE_SIZE) {
+        if (inputDataSize <= FSVERITY_HASH_PAGE_SIZE) {
             ByteBuffer fsVerityHashPageBuffer = slice(dataBuffer, 0, digestSize);
             rootHash = new byte[digestSize];
             fsVerityHashPageBuffer.get(rootHash);