diff --git a/include/osgDB/Registry b/include/osgDB/Registry
index 2110f46fa..6b6f32472 100644
--- a/include/osgDB/Registry
+++ b/include/osgDB/Registry
@@ -350,6 +350,9 @@ class OSGDB_EXPORT Registry : public osg::Referenced
         /** Set the password map to be used by plugins when access files from secure locations.*/
         void setAuthenticationMap(AuthenticationMap* authenticationMap) { _authenticationMap = authenticationMap; }
 
+        /** Get the password map to be used by plugins when access files from secure locations.*/
+        AuthenticationMap* getAuthenticationMap() { return _authenticationMap.get(); }
+
         /** Get the password map to be used by plugins when access files from secure locations.*/
         const AuthenticationMap* getAuthenticationMap() const { return _authenticationMap.get(); }