lib/populate_env/heroku/manifest.rb in populate-env-0.1.0 vs lib/populate_env/heroku/manifest.rb in populate-env-0.1.1

@@ -9,10 +9,14 @@
 
       def attribute_definitions_for(environment)
         begin
           data = JSON.parse(@path.read, symbolize_names: true)
           env_vars = data.fetch(:env, {})
-          env_vars.merge!(data.dig(:environments, environment.to_sym, :env) || {})
+          env_vars.merge!(
+            data.fetch(:environments, {})
+                .fetch(environment.to_sym, {})
+                .fetch(:env, {})
+          )
 
           env_vars.map do |key, value|
             if value.is_a?(Hash)
               default = value.delete(:value)
               value.merge!(name: key, default: default)