diff --git a/Common/GmshMessage.cpp b/Common/GmshMessage.cpp
index f90a2dbd7fed6308f92771a41c601d712f7011ab..1621cc1eb889b803bc5224974beefcefe4ffc9a6 100644
--- a/Common/GmshMessage.cpp
+++ b/Common/GmshMessage.cpp
@@ -1239,7 +1239,7 @@ void Msg::ImportPhysicalGroupsInOnelab()
 #if defined(HAVE_FLTK)
     if(FlGui::available()){
       FlGui::instance()->resetVisibility();
-      FlGui::instance()->rebuildTree(true);
+      FlGui::instance()->rebuildTree(false);
     }
 #endif
   }