--- a/taskcluster/ci/build/linux.yml
+++ b/taskcluster/ci/build/linux.yml
@@ -323,16 +323,17 @@ linux64-stylo/opt:
         actions: [get-secrets build generate-build-stats check-test update]
         config:
             - builds/releng_base_linux_64_builds.py
             - balrog/production.py
         script: "mozharness/scripts/fx_desktop_build.py"
         secrets: true
         custom-build-variant-cfg: stylo
         tooltool-downloads: public
+        need-xvfb: true
     run-on-projects: [ 'stylo', 'autoland', 'mozilla-inbound', 'mozilla-central', 'try' ]
 
 linux64-stylo/debug:
     description: "Linux64 Debug Stylo"
     index:
         product: firefox
         job-name: linux64-stylo-debug
     treeherder:
@@ -348,16 +349,17 @@ linux64-stylo/debug:
         actions: [get-secrets build generate-build-stats check-test update]
         config:
             - builds/releng_base_linux_64_builds.py
             - balrog/production.py
         script: "mozharness/scripts/fx_desktop_build.py"
         secrets: true
         custom-build-variant-cfg: stylo-debug
         tooltool-downloads: public
+        need-xvfb: true
     run-on-projects: [ 'stylo', 'autoland', 'mozilla-inbound', 'mozilla-central', 'try' ]
 
 linux64-jsdcov/opt:
     description: "Linux64-JSDCov Opt"
     index:
         product: firefox
         job-name: linux64-jsdcov-opt
     treeherder: