diff --git a/respondjs.install b/respondjs.install
index 4fb72ef..5450d99 100644
--- a/respondjs.install
+++ b/respondjs.install
@@ -27,7 +27,7 @@ function respondjs_requirements($phase) {
     }
     // If Libraries API is enabled but respond.js is not found within the sites/all/libraries folder
     // report a warning. The module will fall back to its included copy so this isn't a showstopper.
-    if (function_exists('libraries_get_path') && strpos($library_path,'libraries/respondjs') === FALSE) {
+    if (function_exists('libraries_get_path') && strpos($library_path,'libraries/respondjs') !== FALSE) {
       $requirements['respondjs']['value'] = t('Respond.js is not correctly using Libraries API');
       $requirements['respondjs']['severity'] = REQUIREMENT_WARNING;
       $requirements['respondjs']['description'] = t('Please install <a href="https://raw.github.com/scottjehl/Respond/master/respond.min.js">Respond.js</a> in <b>'. libraries_get_path('respondjs') .'</b>. The module is using its included copy at <b>'.drupal_get_path('module','respondjs') .'/lib</b>');