diff --git a/drivers/staging/rtl8192e/rtllib.h b/drivers/staging/rtl8192e/rtllib.h
index b33caccb43a8..c80460e0cfcc 100644
--- a/drivers/staging/rtl8192e/rtllib.h
+++ b/drivers/staging/rtl8192e/rtllib.h
@@ -31,6 +31,7 @@
 #include <linux/jiffies.h>
 #include <linux/timer.h>
 #include <linux/sched.h>
+#include <linux/semaphore.h>
 
 #include <linux/delay.h>
 #include <linux/wireless.h>