diff --git a/src/osgSim/OpenFlightOptimizer.cpp b/src/osgSim/OpenFlightOptimizer.cpp
index ad714edd7..0c3a0cbcb 100644
--- a/src/osgSim/OpenFlightOptimizer.cpp
+++ b/src/osgSim/OpenFlightOptimizer.cpp
@@ -155,7 +155,7 @@ class GeodeStateOptimizer : public osgUtil::Optimizer::StateVisitor
                 }
             }
 
-            osgUtil::Optimizer::StateVisitor::optimize();
+            StateVisitor::optimize();
         }