diff --git a/.gitlab-ci.d/buildtest.yml b/.gitlab-ci.d/buildtest.yml
index 7e1cb0b3c2..12fb1130fe 100644
--- a/.gitlab-ci.d/buildtest.yml
+++ b/.gitlab-ci.d/buildtest.yml
@@ -164,7 +164,7 @@ build-system-centos:
   variables:
     IMAGE: centos8
     CONFIGURE_ARGS: --disable-nettle --enable-gcrypt --enable-fdt=system
-                    --enable-modules --enable-trace-backends=dtrace
+      --enable-modules --enable-trace-backends=dtrace --enable-docs
     TARGETS: ppc64-softmmu or1k-softmmu s390x-softmmu
       x86_64-softmmu rx-softmmu sh4-softmmu nios2-softmmu
     MAKE_CHECK_ARGS: check-build