diff --git a/lib/definitions/errors.js b/lib/definitions/errors.js
index a602983803..c109f2afab 100644
--- a/lib/definitions/errors.js
+++ b/lib/definitions/errors.js
@@ -60,7 +60,7 @@ Your configuration for the \`tagFormat\` option is \`${stringify(tagFormat)}\`.`
     message: `The \`${type}\` plugin configuration is invalid.`,
     details: `The [${type} plugin configuration](${linkify(`docs/usage/plugins.md#${toLower(type)}-plugin`)}) ${
       required ? 'is required and ' : ''
-    } must be a single or an array of plugins definition. A plugin definition is an npm module name, optionnaly wrapped in an array with an object.
+    } must be a single or an array of plugins definition. A plugin definition is an npm module name, optionally wrapped in an array with an object.
 
 Your configuration for the \`${type}\` plugin is \`${stringify(pluginConf)}\`.`,
   }),
@@ -68,7 +68,7 @@ Your configuration for the \`${type}\` plugin is \`${stringify(pluginConf)}\`.`,
     message: 'The `plugins` configuration is invalid.',
     details: `The [plugins](${linkify(
       'docs/usage/configuration.md#plugins'
-    )}) option must be an array of plugin definions. A plugin definition is an npm module name, optionnaly wrapped in an array with an object.
+    )}) option must be an array of plugin definions. A plugin definition is an npm module name, optionally wrapped in an array with an object.
 
 The invalid configuration is \`${stringify(plugin)}\`.`,
   }),