diff --git a/include/linux/kernelcapi.h b/include/linux/kernelcapi.h
index 891bb2c..f8a0ff8 100644
--- a/include/linux/kernelcapi.h
+++ b/include/linux/kernelcapi.h
@@ -47,6 +47,7 @@
 
 #include <linux/list.h>
 #include <linux/skbuff.h>
+#include <linux/workqueue.h>
 
 #define	KCI_CONTRUP	0	/* arg: struct capi_profile */
 #define	KCI_CONTRDOWN	1	/* arg: NULL */