diff --git a/include/asm-m32r/io.h b/include/asm-m32r/io.h
index 8e9e481e6996a2b584dc5add75e9f29755163ddf..70ad1c949c2b498cf691cdfc6326877ecb284681 100644
--- a/include/asm-m32r/io.h
+++ b/include/asm-m32r/io.h
@@ -60,7 +60,7 @@ __ioremap(unsigned long offset, unsigned long size, unsigned long flags);
  *	address.
  */
 
-static inline void * ioremap(unsigned long offset, unsigned long size)
+static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
 {
 	return __ioremap(offset, size, 0);
 }