diff --git a/src/bash/filterTest.sh b/src/bash/filterTest.sh
index 77981a9..f2ec0ec 100755
--- a/src/bash/filterTest.sh
+++ b/src/bash/filterTest.sh
@@ -61,7 +61,6 @@ usage () {
 
 ########################################
 # recherche des binaires
-mbox=$(realpath "$1")
 cd $(dirname $0)
 eMailShrinker="$(realpath "./eMailShrinker")"
 [ -x "${eMailShrinker}" ] || eMailShrinker="$(realpath "../../build/out/eMailShrinker")"
@@ -86,6 +85,7 @@ esac
 [ "$#" -eq 1 ] || usage
 
 ########################################
+mbox=$(realpath "$1")
 dos2unix "${mbox}"
 DOMAINNAME="$(cat domainname)"
 JIRAFEAU_URL="https://depot.${DOMAINNAME}"