diff --git a/fs/dax.c b/fs/dax.c
index bdad052..0433a2b 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -675,7 +675,7 @@
 }
 EXPORT_SYMBOL_GPL(dax_fault);
 
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+#if defined(CONFIG_TRANSPARENT_HUGEPAGE)
 /*
  * The 'colour' (ie low bits) within a PMD of a page offset.  This comes up
  * more often than one might expect in the below function.