Add extra version check in build step.

Dockerfile

@@ -74,11 +74,8 @@ COPY channels/ /root/.config/guix/
 # Verify if the certificates exist and the version is correct (it is fixed to the channels.scm)
 RUN --security=insecure sh -c '/entry-point.sh guix pull && guix package --fallback -i nss-certs' \
 	&& sh -c '/entry-point.sh guix gc && guix gc --optimize' \
-	&& [ -e /root/.guix-profile/etc/ssl/certs/ca-certificates.crt ]
-
-# TODO: Guix version command seems broken, re-enable this once it is solved
-#  \
-# 	&& [ "`cat /root/.config/guix/channels.scm | grep commit | cut -d'"' -f 2`" = "`guix --version | head -n 1 | awk '{print $NF}'`" ]
+	&& [ -e /root/.guix-profile/etc/ssl/certs/ca-certificates.crt ] \
+	&& [ "`cat /root/.config/guix/channels.scm | grep commit | cut -d'"' -f 2`" = "`guix --version | head -n 1 | awk '{print $NF}'`" ]
 
 ENTRYPOINT ["/entry-point.sh"]
 CMD ["sh"]