diff --git a/indra/llcommon/llhandle.h b/indra/llcommon/llhandle.h
index 8e073aab27f390822ab7e1bc4f2c20eef0685766..feb5f418489e5b401eff95591ba4dd0fc31dbd66 100644
--- a/indra/llcommon/llhandle.h
+++ b/indra/llcommon/llhandle.h
@@ -271,7 +271,7 @@ class LLCheckedHandle: public LLCheckedHandleBase
      * Converts the LLCheckedHandle to a bool. Allows for if (chkdHandle) {} 
      * Does not throw.
      */
-    explicit operator bool() const
+    /*explicit*/ operator bool() const // explicit conversion operator not available with Linux compiler
     {
         return (mHandle.get() != NULL);
     }