diff --git a/src/osg/OcclusionQueryNode.cpp b/src/osg/OcclusionQueryNode.cpp
index 6be23a5f5..02509788d 100644
--- a/src/osg/OcclusionQueryNode.cpp
+++ b/src/osg/OcclusionQueryNode.cpp
@@ -586,7 +586,7 @@ bool OcclusionQueryNode::getPassed( const Camera* camera, NodeVisitor& nv )
 
 void OcclusionQueryNode::traverseQuery( const Camera* camera, NodeVisitor& nv )
 {
-    if (!isQueryGeometryValid() || ! _enabled)
+    if (!isQueryGeometryValid() || !_enabled)
         return;
 
     bool issueQuery;