diff --git a/scst/src/dev_handlers/scst_vdisk.c b/scst/src/dev_handlers/scst_vdisk.c
index 3931a87c9..e4647e3c6 100644
--- a/scst/src/dev_handlers/scst_vdisk.c
+++ b/scst/src/dev_handlers/scst_vdisk.c
@@ -25,6 +25,7 @@
 #ifndef INSIDE_KERNEL_TREE
 #include <linux/version.h>
 #endif
+#include <linux/wait.h>
 #include <linux/aio.h>
 #include <linux/file.h>
 #include <linux/fs.h>