diff --git a/lib/expressir/cli.rb b/lib/expressir/cli.rb
index af408aa..dac7bfd 100644
--- a/lib/expressir/cli.rb
+++ b/lib/expressir/cli.rb
@@ -60,7 +60,7 @@ def validate(*paths)
         end
       end
 
-      if no_valid.size || no_version.size
+      unless no_valid.empty? && no_version.empty?
         exit 1
       end
     end