diff --git a/samples/treectrl/treetest.cpp b/samples/treectrl/treetest.cpp
index 1b5625b224..069506f86a 100644
--- a/samples/treectrl/treetest.cpp
+++ b/samples/treectrl/treetest.cpp
@@ -42,7 +42,7 @@
 #include "icon4.xpm"
 #include "icon5.xpm"
 
-#if defined(__WXGTK__) || defined(__WXX11__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__)
+#if defined(__WXGTK__) || defined(__WXX11__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__) || defined(__WXPM__)
 #include "mondrian.xpm"
 #endif