diff --git a/support/workhorse-stunnel b/support/workhorse-stunnel
index 014cb155fe49919b505b63a241d25ae2782f325e..8192a23331aa006a0acf6652a728038fea880b19 100755
--- a/support/workhorse-stunnel
+++ b/support/workhorse-stunnel
@@ -11,7 +11,7 @@ cert = $3
 EOF
 }
 
-if [ x$# -ne x3 ] ; then
+if [ "$#" -ne 3 ] ; then
   echo "Usage: $0 LISTEN_ADDRESS WORKHORSE_SOCKET CERTIFICATE"
   exit 1
 fi