diff --git a/utils/fgpanel/ApplicationProperties.cxx b/utils/fgpanel/ApplicationProperties.cxx
index d28159b58..0c26b8694 100644
--- a/utils/fgpanel/ApplicationProperties.cxx
+++ b/utils/fgpanel/ApplicationProperties.cxx
@@ -17,6 +17,7 @@
 //
 
 #include <unistd.h>
+#include <dirent.h>
 
 #include "ApplicationProperties.hxx"