diff --git a/src/plugins/platforms/xcb/qxcbconnection.cpp b/src/plugins/platforms/xcb/qxcbconnection.cpp
index b9f6df1104..05c02249cc 100644
--- a/src/plugins/platforms/xcb/qxcbconnection.cpp
+++ b/src/plugins/platforms/xcb/qxcbconnection.cpp
@@ -1954,7 +1954,9 @@ static const char * xcb_atomnames = {
     "_COMPIZ_DECOR_PENDING\0"
     "_COMPIZ_DECOR_REQUEST\0"
     "_COMPIZ_DECOR_DELETE_PIXMAP\0"
-    "_COMPIZ_TOOLKIT_ACTION\0" // \0\0 terminates loop.
+    "_COMPIZ_TOOLKIT_ACTION\0"
+    "_GTK_LOAD_ICONTHEMES\0"
+    // \0\0 terminates loop.
 };
 
 QXcbAtom::Atom QXcbConnection::qatom(xcb_atom_t xatom) const
diff --git a/src/plugins/platforms/xcb/qxcbconnection.h b/src/plugins/platforms/xcb/qxcbconnection.h
index b799e46a36..47ef173cf4 100644
--- a/src/plugins/platforms/xcb/qxcbconnection.h
+++ b/src/plugins/platforms/xcb/qxcbconnection.h
@@ -288,6 +288,7 @@ namespace QXcbAtom {
         _COMPIZ_DECOR_REQUEST,
         _COMPIZ_DECOR_DELETE_PIXMAP,
         _COMPIZ_TOOLKIT_ACTION,
+        _GTK_LOAD_ICONTHEMES,
 
         NPredefinedAtoms,
 
diff --git a/src/plugins/platforms/xcb/qxcbwindow.cpp b/src/plugins/platforms/xcb/qxcbwindow.cpp
index 7eae2d92ab..bfbc38e4c2 100644
--- a/src/plugins/platforms/xcb/qxcbwindow.cpp
+++ b/src/plugins/platforms/xcb/qxcbwindow.cpp
@@ -2033,8 +2033,9 @@ void QXcbWindow::handleClientMessageEvent(const xcb_client_message_event_t *even
     } else if (event->type == atom(QXcbAtom::_COMPIZ_DECOR_PENDING)
             || event->type == atom(QXcbAtom::_COMPIZ_DECOR_REQUEST)
             || event->type == atom(QXcbAtom::_COMPIZ_DECOR_DELETE_PIXMAP)
-            || event->type == atom(QXcbAtom::_COMPIZ_TOOLKIT_ACTION)) {
-        //silence the _COMPIZ messages for now
+            || event->type == atom(QXcbAtom::_COMPIZ_TOOLKIT_ACTION)
+            || event->type == atom(QXcbAtom::_GTK_LOAD_ICONTHEMES)) {
+        //silence the _COMPIZ and _GTK messages for now
     } else {
         qWarning() << "QXcbWindow: Unhandled client message:" << connection()->atomName(event->type);
     }