1 files changed, 1 insertions, 1 deletions

diff --git a/arch/i386/kernel/mca.c b/arch/i386/kernel/mca.c
index 8600faeea29..558bb207720 100644
--- a/arch/i386/kernel/mca.c
+++ b/arch/i386/kernel/mca.c
@@ -132,7 +132,7 @@ static struct resource mca_standard_resources[] = {
         { .start = 0x100, .end = 0x107, .name = "POS (MCA)" }
 };
 
-#define MCA_STANDARD_RESOURCES  (sizeof(mca_standard_resources)/sizeof(struct resource))
+#define MCA_STANDARD_RESOURCES  ARRAY_SIZE(mca_standard_resources)
 
 /**
  *      mca_read_and_store_pos - read the POS registers into a memory buffer