diff --git a/scripts/check-phase10.sh b/scripts/check-phase10.sh
index d158519..3ce8732 100755
--- a/scripts/check-phase10.sh
+++ b/scripts/check-phase10.sh
@@ -289,7 +289,8 @@ run_self_test() {
 
 run_go() {
 	(cd "$ROOT" && go vet ./...)
-	phase10_go "$ROOT" ./...
+	# TestBootstrapEndToEnd is opt-in (SUMMERCMS_BOOTSTRAP_CHECK=1, 14.3-02) and skips otherwise.
+	phase10_go "$ROOT" ./... -skip '^TestBootstrapEndToEnd$'
 	(cd "$APP" && go vet ./... "${APP_PLUGINS[@]}")
 	PHASE10_ALLOW="$KNOWN_APP_FAILURES" PHASE10_EXPECT_SKIP="$APP_PENDING_SKIPS" PHASE10_SKIP_TEXT="$APP_PENDING_TEXT" \
 		phase10_go "$APP" ./... "${APP_PLUGINS[@]}"