diff --git a/util/ceg/defaults/pseudo/C_close.c b/util/ceg/defaults/pseudo/C_close.c
index 145ac61e..bd41a47b 100644
--- a/util/ceg/defaults/pseudo/C_close.c
+++ b/util/ceg/defaults/pseudo/C_close.c
@@ -1,5 +1,5 @@
 #define CODE_EXPANDER
-#include <em.h>
+#include <back.h>
 #include <assert.h>
 
 extern int B_busy; 
diff --git a/util/ceg/defaults/pseudo/C_init.c b/util/ceg/defaults/pseudo/C_init.c
index 435b508c..2c9fee6d 100644
--- a/util/ceg/defaults/pseudo/C_init.c
+++ b/util/ceg/defaults/pseudo/C_init.c
@@ -1,5 +1,5 @@
 #define CODE_EXPANDER
-#include <em.h>
+#include <back.h>
 #include <system.h>
 #include "mach.h"
 
diff --git a/util/ceg/defaults/pseudo/C_open.c b/util/ceg/defaults/pseudo/C_open.c
index 0a33eb9d..61e905b2 100644
--- a/util/ceg/defaults/pseudo/C_open.c
+++ b/util/ceg/defaults/pseudo/C_open.c
@@ -1,5 +1,5 @@
 #define CODE_EXPANDER
-#include <em.h>
+#include <back.h>
 #include <assert.h>
 #include <system.h>