diff --git a/system/src/Grav/Common/GPM/GPM.php b/system/src/Grav/Common/GPM/GPM.php
index 99ce448ee6..4b324b5b14 100644
--- a/system/src/Grav/Common/GPM/GPM.php
+++ b/system/src/Grav/Common/GPM/GPM.php
@@ -513,7 +513,7 @@ public static function downloadPackage($package_file, $tmp)
         $filename = basename($package['path']);
 
         if (Grav::instance()['config']->get('system.gpm.official_gpm_only') && $package['host'] !== 'getgrav.org') {
-            throw new \RuntimeException("Only offical GPM URLs are allowed.  You can modify this behavior in the System configuration.");
+            throw new \RuntimeException("Only official GPM URLs are allowed. You can modify this behavior in the System configuration.");
         }
 
         $output = Response::get($package_file, []);