diff --git a/images/linux/scripts/installers/firefox.sh b/images/linux/scripts/installers/firefox.sh
index ceec1b14..b591a26f 100644
--- a/images/linux/scripts/installers/firefox.sh
+++ b/images/linux/scripts/installers/firefox.sh
@@ -49,4 +49,5 @@ if ! command -v geckodriver; then
 fi
 
 echo "Lastly, documenting what we added to the metadata file"
-DocumentInstalledItem "Geckodriver ($(geckodriver --version)); Gecko Driver is available via GECKOWEBDRIVER environment variable"
+ver=`./geckodriver --version|head -1|awk '{print $2}'`
+DocumentInstalledItem "Geckodriver (${ver}); Gecko Driver is available via GECKOWEBDRIVER environment variable"