diff --git a/CI/before_install.osx.sh b/CI/before_install.osx.sh
index 32cd0636d3..87013df1ae 100755
--- a/CI/before_install.osx.sh
+++ b/CI/before_install.osx.sh
@@ -9,6 +9,7 @@ brew update --quiet
 [ -z "${TRAVIS}" ] && brew uninstall --ignore-dependencies qt@6 || true
 
 # Some of these tools can come from places other than brew, so check before installing
+[ -z "${TRAVIS}" ] && brew reinstall xquartz
 [ -z "${TRAVIS}" ] && brew reinstall fontconfig
 command -v ccache >/dev/null 2>&1 || brew install ccache
 command -v cmake >/dev/null 2>&1 || brew install cmake