diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ff9f22cf84..127ac10e6b 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -6,10 +6,10 @@ variables:
 
 before_script:
   - apt-get -yqq update
-  - apt-get -yqq install build-essential libtool gcc-4.8 g++-4.8 make cmake openssl clang-3.5
+  - apt-get -yqq install build-essential libtool gcc-4.8 g++-4.8 make cmake openssl clang-3.5 mysql-client
   - apt-get -yqq install libssl-dev libmysqlclient-dev libmysql++-dev libreadline6-dev zlib1g-dev libbz2-dev libzmq3-dev
   - apt-get -yqq install libboost1.55-dev libboost-thread1.55-dev libboost-filesystem1.55-dev libboost-system1.55-dev libboost-program-options1.55-dev libboost-iostreams1.55-dev
-  - export CC=clang CXX=clang++
+  - export CC=clang-3.5 CXX=clang++-3.5
 
 install:
   script: