diff --git a/lib/vanity/configuration.rb b/lib/vanity/configuration.rb
index 3cfb1a52..b07101dc 100644
--- a/lib/vanity/configuration.rb
+++ b/lib/vanity/configuration.rb
@@ -213,7 +213,7 @@ def connection_params(file_name = nil)
       file_path = File.join(config_path, file_name)
 
       if File.exist?(file_path) # rubocop:todo Style/GuardClause
-        config = YAML.safe_load(ERB.new(File.read(file_path)).result)
+        config = YAML.safe_load(ERB.new(File.read(file_path)).result, [], [], true)
         config ||= {}
         params_for_environment = config[environment.to_s]
 
diff --git a/test/dummy/config/initializers/vanity.rb b/test/dummy/config/initializers/vanity.rb
new file mode 100644
index 00000000..f7870460
--- /dev/null
+++ b/test/dummy/config/initializers/vanity.rb
@@ -0,0 +1,3 @@
+Vanity.configure do |config|
+  config.config_path = Rails.root.join('config')
+end
diff --git a/test/dummy/config/vanity.yml b/test/dummy/config/vanity.yml
new file mode 100644
index 00000000..da219ca0
--- /dev/null
+++ b/test/dummy/config/vanity.yml
@@ -0,0 +1,7 @@
+default: &default
+  some_key: true
+
+test:
+  <<: *default
+  adapter: mock
+  collecting: false