diff --git a/tools/gcg/ex/strtest.c b/tools/gcg/ex/strtest.c
index 8918bb4bfa..a3b06c42e9 100644
--- a/tools/gcg/ex/strtest.c
+++ b/tools/gcg/ex/strtest.c
@@ -1,4 +1,4 @@
-#include <ex/file_ostream_i.h>
+#include <ex/file_ostream.i.h>
 
 void putstring_handler(Ostream* o, gchar* msg, gpointer data){
 	gchar* s = data;