diff --git a/fs/jffs2/debug.h b/fs/jffs2/debug.h
index 3daf3bc..f89c85d 100644
--- a/fs/jffs2/debug.h
+++ b/fs/jffs2/debug.h
@@ -13,6 +13,7 @@
 #ifndef _JFFS2_DEBUG_H_
 #define _JFFS2_DEBUG_H_
 
+#include <linux/sched.h>
 
 #ifndef CONFIG_JFFS2_FS_DEBUG
 #define CONFIG_JFFS2_FS_DEBUG 0