diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index bbbe345..eb775fc 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -16,5 +16,5 @@ build:
                 - apt update
                 - apt install -y gcc g++ libssl-dev uuid-dev xsltproc docbook docbook-xsl libmariadbclient-dev
                 - pushd parts/mosquitto && make && popd
-		- pushd parts/mosquitto-auth-plug && cat config.mk.in | sed 's,^MOSQUITTO_SRC =,MOSQUITTO_SRC = /root/mosquitto,' > config.mk && make && popd
+                - pushd parts/mosquitto-auth-plug && cat config.mk.in | sed 's,^MOSQUITTO_SRC =,MOSQUITTO_SRC = /root/mosquitto,' > config.mk && make && popd