diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index 8f147274f826..05e7339752ac 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -11,8 +11,8 @@
  * Copyright 2002 MontaVista Software Inc.
  */
 
-#define pr_fmt(fmt) "%s" fmt, "IPMI message handler: "
-#define dev_fmt pr_fmt
+#define pr_fmt(fmt) "IPMI message handler: " fmt
+#define dev_fmt(fmt) pr_fmt(fmt)
 
 #include <linux/module.h>
 #include <linux/errno.h>