diff --git a/ci/build_setup.sh b/ci/build_setup.sh
index f9275c2543c8e..141499f73bdc5 100755
--- a/ci/build_setup.sh
+++ b/ci/build_setup.sh
@@ -145,4 +145,6 @@ else
   echo "Skip setting up Envoy Filter Example."
 fi
 
-export ENVOY_BUILD_FILTER_EXAMPLE="${FILTER_WORKSPACE_SET:-0}"
+# https://github.com/istio/istio/issues/30484
+# Don't build the filter example.
+export ENVOY_BUILD_FILTER_EXAMPLE=0