diff --git a/AMBuildScript b/AMBuildScript
index 60749f8..02281fc 100644
--- a/AMBuildScript
+++ b/AMBuildScript
@@ -259,7 +259,7 @@ class MMSConfig(object):
     else:
       compiler.defines += ['COMPILER_GCC']
 
-    if sdk.name in ['css', 'hl2dm', 'dods', '2013', 'tf2', 'nd', 'l4d2', 'dota']:
+    if sdk.name in ['css', 'hl2dm', 'dods', '2013', 'tf2', 'l4d', 'nd', 'l4d2', 'dota']:
       if builder.target_platform in ['linux', 'mac']:
         compiler.defines += ['NO_HOOK_MALLOC', 'NO_MALLOC_OVERRIDE']