diff --git a/Hash_Table.h b/Hash_Table.h
index cff1453..a97ad81 100644
--- a/Hash_Table.h
+++ b/Hash_Table.h
@@ -52,8 +52,8 @@ typedef struct
 
 typedef struct
 {
-    uint32_t offset:31, rev:1;
-    uint32_t readID;
+    uint32_t offset;
+    uint32_t readID:31, rev:1;
 } k_mer_pos;
 
 typedef struct