diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index e04c488..55cd0a0 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -47,10 +47,13 @@
 #include <linux/list.h>
 #include <linux/rwsem.h>
 #include <linux/scatterlist.h>
+#include <linux/workqueue.h>
 
 #include <asm/atomic.h>
 #include <asm/uaccess.h>
 
+extern struct workqueue_struct *ib_wq;
+
 union ib_gid {
 	u8	raw[16];
 	struct {