diff --git a/zen/tools/dunitey2secret.sh b/zen/tools/dunitey2secret.sh
index b730316..81651b5 100755
--- a/zen/tools/dunitey2secret.sh
+++ b/zen/tools/dunitey2secret.sh
@@ -12,7 +12,7 @@ MY_PATH="`( cd \"$MY_PATH\" && pwd )`"  # absolutized and normalized
 # \\///
 # qo-op
 #############
-DUNKEYFILE="$1"
+DUNIKEYFILE="$1"
 [[ ! ${DUNIKEYFILE} ]] && DUNIKEYFILE="./secret.dunikey"
 [[ ! ${DUNIKEYFILE} ]] && DUNIKEYFILE="~/.ssb/secret.dunikey"
 [[ ! -f ${DUNIKEYFILE} ]] && echo "ERROR secret.dunikey unfound" && exit 1