diff --git a/polkit-tqt-export.h b/polkit-tqt-export.h
index f1768098b..86cb59ab4 100644
--- a/polkit-tqt-export.h
+++ b/polkit-tqt-export.h
@@ -22,6 +22,8 @@
 #ifndef POLKIT_TQT_EXPORT_H
 #define POLKIT_TQT_EXPORT_H
 
+#include <tqglobal.h>
+
 #define POLKIT_TQT_EXPORT TQ_EXPORT
 
 #endif