diff --git a/libgralloc/alloc_controller.cpp b/libgralloc/alloc_controller.cpp
index e5e748c..c76b31b 100644
--- a/libgralloc/alloc_controller.cpp
+++ b/libgralloc/alloc_controller.cpp
@@ -141,7 +141,8 @@ int IonController::allocate(alloc_data& data, int usage,
 
     if(usage & GRALLOC_USAGE_PRIVATE_DO_NOT_MAP)
         data.allocType  =  private_handle_t::PRIV_FLAGS_NOT_MAPPED;
-
+    else
+        data.allocType  &=  ~(private_handle_t::PRIV_FLAGS_NOT_MAPPED);
     // if no flags are set, default to
     // EBI heap, so that bypass can work
     // we can fall back to system heap if