diff --git a/src/base/fast_alloc.cc b/src/base/fast_alloc.cc
index 610dff66c0..e1298a8bde 100644
--- a/src/base/fast_alloc.cc
+++ b/src/base/fast_alloc.cc
@@ -34,15 +34,15 @@
  * by permission.
  */
 
-#ifndef NO_FAST_ALLOC
+#include <assert.h>
+#include "base/fast_alloc.hh"
+
+#if !NO_FAST_ALLOC
 
 #ifdef __GNUC__
 #pragma implementation
 #endif
 
-#include <assert.h>
-#include "base/fast_alloc.hh"
-
 void *FastAlloc::freeLists[Num_Buckets];
 
 #ifdef FAST_ALLOC_STATS