diff --git a/lib/idr.c b/lib/idr.c
index 8170ace..9d905b1 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -326,7 +326,8 @@
 
 static void idr_remove_warning(int id)
 {
-	printk("idr_remove called for id=%d which is not allocated.\n", id);
+	printk(KERN_WARNING
+		"idr_remove called for id=%d which is not allocated.\n", id);
 	dump_stack();
 }