diff --git a/circle.yml b/circle.yml
index 8290392..1526b38 100644
--- a/circle.yml
+++ b/circle.yml
@@ -4,7 +4,7 @@ machine:
   node:
     version: 5.11.1
   environment:
-    DEBUG: false
+    BUILD_PRODUCTION: true
 
 dependencies:
   pre:
diff --git a/pelicanconf.py b/pelicanconf.py
index 8618c0b..fb6f33e 100644
--- a/pelicanconf.py
+++ b/pelicanconf.py
@@ -62,7 +62,7 @@ PLUGINS = [
     "minify"
 ]
 
-if "DEBUG" in os.environ:
+if "BUILD_PRODUCTION" in os.environ:
     PLUGINS.append("minify")  # only minify on production build
 
 SITEMAP = {