2 files changed, 2 insertions, 1 deletions
diff --git a/.gitignore b/.gitignore
index 2595878c..4dbfa889 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@ node_modules/*
 dist
 jscoverage.json
 tags
+.cake_task_cache
diff --git a/Cakefile b/Cakefile
index 0fa75e24..d78bb062 100644
--- a/Cakefile
+++ b/Cakefile
@@ -88,7 +88,7 @@ task "package-custom-crx", "build .crx file", ->
 
   crxmake = spawn "crxmake", optArrayFromDict
     "pack-extension": "."
-    "pack-extension-key": "vimium.pem"
+    "pack-extension-key": process.env.VIMIUM_CRX_PEM ? "vimium.pem"
     "extension-output": "vimium-latest.crx"
     "ignore-file": "(^\\.|\\.(coffee|crx|pem|un~)$)"
     "ignore-dir": "^(\\.|test)"