diff --git a/CHANGELOG.md b/CHANGELOG.md
index bdb5375..a5c887d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/) and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## Unreleased
+
+### Fixed
+- Fixed an error that occurred when executing a GraphQL query if a Width field existed in the Craft install
+
 ## 4.1.0 - 2022-10-20
 
 ### Added
diff --git a/src/fields/Width.php b/src/fields/Width.php
index 0d6429b..f0d145f 100755
--- a/src/fields/Width.php
+++ b/src/fields/Width.php
@@ -8,6 +8,7 @@
 use craft\fields\Dropdown;
 use craft\helpers\Cp;
 use craft\helpers\Json;
+use GraphQL\Type\Definition\Type;
 use spicyweb\oddsandends\fields\data\WidthData;
 use yii\db\Schema;
 
@@ -183,6 +184,22 @@ public function validateOptions(): void
         }
     }
 
+    /**
+     * @inheritdoc
+     */
+    public function getContentGqlMutationArgumentType(): Type|array
+    {
+        // Using the code from \craft\base\Field::getContentGqlMutationArgumentType() due to an error that was occurring
+        // with GraphQL queries.
+        // TODO: either extend something other than Dropdown, or figure out another way to avoid the error and let this
+        // field type support GraphQL mutations.
+        return [
+            'name' => $this->handle,
+            'type' => Type::string(),
+            'description' => $this->instructions,
+        ];
+    }
+
     /**
      * @inheritdoc
      */