diff --git a/bin/steps/pylibmc b/bin/steps/pylibmc
index 960859b193c26ad866e9b7c681fc761d33634cf7..58dd3eeb75b07799a092bf8fdc213e157395e332 100644
--- a/bin/steps/pylibmc
+++ b/bin/steps/pylibmc
@@ -13,7 +13,7 @@
 VENDORED_MEMCACHED="http://cl.ly/0a191R3K160t1w1P0N25/vendor-libmemcached.tar.gz"
 
 # If pylibmc exists within requirements, use vendored libmemcached.
-if [ requirements.txt ]; then
+if [ -f requirements.txt ]; then
   if (grep -Fiq "pylibmc" requirements.txt) then
     echo "-----> Noticed pylibmc. Bootstrapping libmemcached."
     cd .heroku