diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 04849f71..fc905d66 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -473,7 +473,7 @@ jobs:
           START_PATH="${PREFIX}.start"
           DONE_PATH="${PREFIX}.done"
           LOG_PATH="${PREFIX}.log"
-          MANIFEST_PATH="${HARNESS_DIR}/cmux-ui-test-display-harness.json"
+          MANIFEST_PATH="/tmp/cmux-ui-test-display-harness.json"
 
           rm -f "$READY_PATH" "$DISPLAY_ID_PATH" "$START_PATH" "$DONE_PATH" "$LOG_PATH" "$MANIFEST_PATH"
 
diff --git a/.github/workflows/test-e2e.yml b/.github/workflows/test-e2e.yml
index c56f833e..7e5105ae 100644
--- a/.github/workflows/test-e2e.yml
+++ b/.github/workflows/test-e2e.yml
@@ -216,7 +216,7 @@ jobs:
             START_PATH="${PREFIX}.start"
             DONE_PATH="${PREFIX}.done"
             LOG_PATH="${PREFIX}.log"
-            MANIFEST_PATH="${HARNESS_DIR}/cmux-ui-test-display-harness.json"
+            MANIFEST_PATH="/tmp/cmux-ui-test-display-harness.json"
 
             rm -f "$READY_PATH" "$DISPLAY_ID_PATH" "$START_PATH" "$DONE_PATH" "$LOG_PATH" "$MANIFEST_PATH"