diff --git a/lib-src/FileDialog/Makefile.in b/lib-src/FileDialog/Makefile.in
index a9a041d66..aa5ad1b61 100644
--- a/lib-src/FileDialog/Makefile.in
+++ b/lib-src/FileDialog/Makefile.in
@@ -26,4 +26,4 @@ clean:
 	-$(RM) -f $(OBJS)
 
 distclean: clean
-	-$(RM) -rf config.log config.status autom4te.cache Makefile
+	-$(RM) -rf config.h config.log config.status autom4te.cache Makefile