diff --git a/build-docker-doom.sh b/build-docker-doom.sh
index 13ed1c4..b170848 100755
--- a/build-docker-doom.sh
+++ b/build-docker-doom.sh
@@ -3,7 +3,7 @@
 if [ "`command -v docker`" = '' ]; then
   echo "You have to install docker before you can build the container."
   exit 1
-elif [ '$#' -gt 1 ]; then
+elif [ "$#" -gt 1 ]; then
    docker build . -t $1
 else
   docker build . -t docker-doom