diff --git a/drivers/staging/crystalhd/crystalhd_lnx.h b/drivers/staging/crystalhd/crystalhd_lnx.h
index d3f9fc43d2d4525e7c75bee8a06ecdeac97021e1..d338ae97a4cfd5ea9d011bb7fb90d4870f667a9f 100644
--- a/drivers/staging/crystalhd/crystalhd_lnx.h
+++ b/drivers/staging/crystalhd/crystalhd_lnx.h
@@ -40,6 +40,7 @@
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/pagemap.h>
+#include <linux/vmalloc.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>