diff --git a/msfbinscan b/msfbinscan
index e5c278988161..6f59645bfada 100755
--- a/msfbinscan
+++ b/msfbinscan
@@ -126,6 +126,11 @@ rescue OptionParser::InvalidOption
 	exit(1)
 end
 
+if not mode
+	puts "A mode must be selected"
+	exit(1)
+end
+
 # check if the file is a directory if it is collect all the entries
 ARGV.each do |file|