diff --git a/lib/renderers.py b/lib/renderers.py
index 4679a46..cbbe34f 100644
--- a/lib/renderers.py
+++ b/lib/renderers.py
@@ -62,9 +62,9 @@ def shouldnt_build_sign(props):
 @util.renderer
 def build_env(props):
     default_envs = {
-        BUILDBOT_REPOSITORY: props.getProperty("repository"),
-        BUILDBOT_BRANCH: props.getProperty("branch"),
-        BUILDBOT_JOB: props.getProperty("job")
+        "BUILDBOT_REPOSITORY": props.getProperty("repository"),
+        "BUILDBOT_BRANCH": props.getProperty("branch"),
+        "BUILDBOT_JOB": props.getProperty("job")
     }
     new_envs = {}
     if props.getProperty("jobname", default="") == "android":