diff --git a/Dockerfile.centos7 b/Dockerfile.centos7
index 8b87654775..67d45ce3b2 100644
--- a/Dockerfile.centos7
+++ b/Dockerfile.centos7
@@ -43,7 +43,7 @@ RUN yum -y install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.n
         qt5-qtbase-devel \
         libxcb libxcb-devel \
         xcb-util xcb-util-devel \
-        libxkbcommon-devel libxkbcommon-x11-devel
+        libxkbcommon-devel libxkbcommon-x11-devel \
     && yum clean all
 
 # we need to build our own patchelf