diff --git a/arch/arm/mach-shmobile/include/mach/mmc.h b/arch/arm/mach-shmobile/include/mach/mmc.h
index e11560a525a1..21a59db638bb 100644
--- a/arch/arm/mach-shmobile/include/mach/mmc.h
+++ b/arch/arm/mach-shmobile/include/mach/mmc.h
@@ -9,7 +9,7 @@
 
 #ifdef CONFIG_MACH_AP4EVB
 #include "mach/mmc-ap4eb.h"
-#elif CONFIG_MACH_MACKEREL
+#elif defined(CONFIG_MACH_MACKEREL)
 #include "mach/mmc-mackerel.h"
 #else
 #error "unsupported board."
diff --git a/arch/arm/mach-shmobile/include/mach/zboot.h b/arch/arm/mach-shmobile/include/mach/zboot.h
index 6d6a205bcf90..9320aff0a20f 100644
--- a/arch/arm/mach-shmobile/include/mach/zboot.h
+++ b/arch/arm/mach-shmobile/include/mach/zboot.h
@@ -13,7 +13,7 @@
 #ifdef CONFIG_MACH_AP4EVB
 #define MACH_TYPE	MACH_TYPE_AP4EVB
 #include "mach/head-ap4evb.txt"
-#elif CONFIG_MACH_MACKEREL
+#elif defined(CONFIG_MACH_MACKEREL)
 #define MACH_TYPE	MACH_TYPE_MACKEREL
 #include "mach/head-mackerel.txt"
 #else