diff --git a/vendor/pip-pop/pip-grep b/vendor/pip-pop/pip-grep
index acf579a..6d29943 100755
--- a/vendor/pip-pop/pip-grep
+++ b/vendor/pip-pop/pip-grep
@@ -62,7 +62,7 @@ def grep(reqfile, packages, silent=False):
                 exit(0)
 
     if not silent:
-        print('Not found.'.format(requirement.req.project_name))
+        print('Not found.')
 
     exit(1)