diff --git a/gps/core/LocApiBase.cpp b/gps/core/LocApiBase.cpp
index 1278155..0550764 100644
--- a/gps/core/LocApiBase.cpp
+++ b/gps/core/LocApiBase.cpp
@@ -162,7 +162,7 @@ void LocApiBase::addAdapter(LocAdapterBase* adapter)
         if (mLocAdapters[i] == NULL) {
             mLocAdapters[i] = adapter;
             mMsgTask->sendMsg(new LocOpenMsg(this,
-                                             (adapter->getEvtMask())));
+                    mMask | adapter->getEvtMask()));
             break;
         }
     }