diff --git a/core/modules/system/system.admin.inc b/core/modules/system/system.admin.inc
index 3ffbf3c..093d2f4 100644
--- a/core/modules/system/system.admin.inc
+++ b/core/modules/system/system.admin.inc
@@ -224,7 +224,7 @@ function theme_system_modules_details($variables) {
     $requires = !empty($module['#requires']);
     $required_by = !empty($module['#required_by']);
     $version = !empty($module['version']['#markup']);
-    $incompatible =!empty($module['incompatible']);
+    $incompatible = !empty($module['incompatible']);
     $title = drupal_render($module['description']);
 
     $row[] = array('class' => array('checkbox'), 'data' => drupal_render($module['enable']));