diff --git a/samples/thread/thread.cpp b/samples/thread/thread.cpp
index ad6b45438e..48aef6531e 100644
--- a/samples/thread/thread.cpp
+++ b/samples/thread/thread.cpp
@@ -35,6 +35,7 @@
 
 #include "wx/progdlg.h"
 
+#define USE_EXECUTE
 #ifdef USE_EXECUTE
     #define EXEC(cmd) wxExecute((cmd), wxEXEC_SYNC)
 #else