diff --git a/config/initializers/geocoder.rb b/config/initializers/geocoder.rb
index 8abae13..c05670e 100644
--- a/config/initializers/geocoder.rb
+++ b/config/initializers/geocoder.rb
@@ -7,7 +7,7 @@
   use_https: true,            # use HTTPS for lookup requests? (if supported)
   http_proxy: nil,            # HTTP proxy server (user:pass@host:port)
   https_proxy: nil,           # HTTPS proxy server (user:pass@host:port)
-  api_key: nil,               # API key for geocoding service
+  api_key: ENV['GEOCODER_API_KEY'],  # API key for geocoding service
   cache: nil,                 # cache object (must respond to #[], #[]=, and #del)
   cache_prefix: 'geocoder:',  # prefix (string) to use for all cache keys
 
@@ -19,4 +19,4 @@
   # Calculation options
   units: :km,                 # :km for kilometers or :mi for miles
   distances: :linear          # :spherical or :linear
-)
\ No newline at end of file
+)