diff --git a/src/os2/window.cpp b/src/os2/window.cpp
index 71d6eca0f9..989b173844 100644
--- a/src/os2/window.cpp
+++ b/src/os2/window.cpp
@@ -3188,7 +3188,7 @@ bool wxWindowOS2::OS2Create(
     // which is the same but without CS_[HV]REDRAW class styles so using it
     // ensures that the window is not fully repainted on each resize
     //
-    if (!HasStyle(wxFULL_REPAINT_ON_RESIZE))
+    if (!HasFlag(wxFULL_REPAINT_ON_RESIZE))
     {
         sClassName += wxT("NR");
     }