diff --git a/src/common.h b/src/common.h
index 94bddba..9c462a0 100644
--- a/src/common.h
+++ b/src/common.h
@@ -1,7 +1,7 @@
 #ifndef COMMON_H
 #define COMMON_H
 
-#define VERSION_NUM "0.3.0"
+#define VERSION_NUM "0.4.0"
 #define ALGORITHM_VER 2
 
 #define _DEBUG false
diff --git a/src/rfqchunk.cpp b/src/rfqchunk.cpp
index baff87b..d35fbf3 100644
--- a/src/rfqchunk.cpp
+++ b/src/rfqchunk.cpp
@@ -88,7 +88,7 @@ void RfqChunk::readName2LenBuf(ifstream& ifs) {
     for(int i=0; i<mName2LenBufSize; i++) {
         mName2BufSize += mName2LenBuf[i];
     }
-    if( (mFlags & BIT_NAME1_LEN_SAME) &&  (mFlags & BIT_NAME2_SAME)==false)
+    if( (mFlags & BIT_NAME2_LEN_SAME) &&  (mFlags & BIT_NAME2_SAME)==false)
         mName2BufSize *= mReads;
 }