diff --git a/mod_cacher/xc_cacher.c b/mod_cacher/xc_cacher.c
index 8049815..999891f 100644
--- a/mod_cacher/xc_cacher.c
+++ b/mod_cacher/xc_cacher.c
@@ -16,6 +16,7 @@
 #include "xcache/xc_ini.h"
 #include "xcache/xc_utils.h"
 #include "xcache/xc_sandbox.h"
+#include "xcache/xc_shm.h"
 #include "util/xc_trace.h"
 #include "util/xc_vector.h"
 #include "util/xc_align.h"