diff --git a/package/osx/create-dmg/create-dmg b/package/osx/create-dmg/create-dmg
index 3e55dd974..2c306bc3d 100755
--- a/package/osx/create-dmg/create-dmg
+++ b/package/osx/create-dmg/create-dmg
@@ -180,7 +180,7 @@ if ! test -z "$VOLUME_ICON_FILE"; then
 fi
 
 # run applescript
-APPLESCRIPT=$(mktemp -t createdmg)
+APPLESCRIPT=$(mktemp -t createdmg.XXXXXX)
 cat "$AUX_PATH/template.applescript" | sed -e "s/WINX/$WINX/g" -e "s/WINY/$WINY/g" -e "s/WINW/$WINW/g" -e "s/WINH/$WINH/g" -e "s/BACKGROUND_CLAUSE/$BACKGROUND_CLAUSE/g" -e "s/REPOSITION_HIDDEN_FILES_CLAUSE/$REPOSITION_HIDDEN_FILES_CLAUSE/g" -e "s/ICON_SIZE/$ICON_SIZE/g" -e "s/TEXT_SIZE/$TEXT_SIZE/g" | perl -pe  "s/POSITION_CLAUSE/$POSITION_CLAUSE/g" | perl -pe "s/APPLICATION_CLAUSE/$APPLICATION_CLAUSE/g" | perl -pe "s/HIDING_CLAUSE/$HIDING_CLAUSE/" >"$APPLESCRIPT"
 
 echo "Running Applescript: /usr/bin/osascript \"${APPLESCRIPT}\" \"${VOLUME_NAME}\""