diff --git a/recipes/xrefs.py b/recipes/xrefs.py
index 890ab9f..610190b 100644
--- a/recipes/xrefs.py
+++ b/recipes/xrefs.py
@@ -50,7 +50,7 @@
     # just use a stand-in path when it isn't set.
     try:
         api.kythe.kythe_dir = api.path.abs_to_path(
-            api.environment.PW_PIGWEED_CIPD_INSTALL_DIR
+            env.PW_PIGWEED_CIPD_INSTALL_DIR
         ).join('kythe')
     except AttributeError:
         api.kythe.kythe_dir = api.path['start_dir'].join('kythe')