diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index bdfb9be..9cd211e 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -3246,7 +3246,7 @@
 };
 ATTRIBUTE_GROUPS(sdebug_drv);
 
-struct device *pseudo_primary;
+static struct device *pseudo_primary;
 
 static int __init scsi_debug_init(void)
 {