diff --git a/include/LoopClosing.h b/include/LoopClosing.h
index c9ccb269ae4..7b6bfe0978a 100644
--- a/include/LoopClosing.h
+++ b/include/LoopClosing.h
@@ -223,7 +223,7 @@ class LoopClosing
     bool mbFixScale;
 
 
-    bool mnFullBAIdx;
+    int mnFullBAIdx;