diff --git a/bin/mpw b/bin/mpw
index 464980c..a69b568 100755
--- a/bin/mpw
+++ b/bin/mpw
@@ -48,7 +48,7 @@ command = "#{bin_dir}/mpw-#{ARGV[0]}"
 if Dir.glob("#{bin_dir}/mpw-*").include?("#{command}")
 	begin
 		Kernel.load(command)
-	rescue Exception => e
+	rescue OptionParser::ParseError => e
 		puts "#{I18n.t('display.error')}: #{e}".red
 	end
 else