diff --git a/fastlane/lib/fastlane/actions/environment_variable.rb b/fastlane/lib/fastlane/actions/environment_variable.rb
index 5ecf28777ff..211d0c4cc31 100644
--- a/fastlane/lib/fastlane/actions/environment_variable.rb
+++ b/fastlane/lib/fastlane/actions/environment_variable.rb
@@ -29,27 +29,19 @@ def self.author
 
       def self.available_options
         [
-          FastlaneCore::ConfigItem.new(
-            key: :set,
-            env_name: 'FL_ENVIRONMENT_VARIABLE_SET',
-            description: 'Set the environment variables named',
-            optional: true,
-            type: Hash
-          ),
-          FastlaneCore::ConfigItem.new(
-            key: :get,
-            env_name: 'FL_ENVIRONMENT_VARIABLE_GET',
-            description: 'Get the environment variable named',
-            optional: true,
-            is_string: true
-          ),
-          FastlaneCore::ConfigItem.new(
-            key: :remove,
-            env_name: 'FL_ENVIRONMENT_VARIABLE_REMOVE',
-            description: 'Remove the environment variable named',
-            optional: true,
-            is_string: true
-          )
+          FastlaneCore::ConfigItem.new(key: :set,
+                                       env_name: 'FL_ENVIRONMENT_VARIABLE_SET',
+                                       description: 'Set the environment variables named',
+                                       optional: true,
+                                       type: Hash),
+          FastlaneCore::ConfigItem.new(key: :get,
+                                       env_name: 'FL_ENVIRONMENT_VARIABLE_GET',
+                                       description: 'Get the environment variable named',
+                                       optional: true),
+          FastlaneCore::ConfigItem.new(key: :remove,
+                                       env_name: 'FL_ENVIRONMENT_VARIABLE_REMOVE',
+                                       description: 'Remove the environment variable named',
+                                       optional: true)
         ]
       end