diff --git a/ci/travis/ci.sh b/ci/travis/ci.sh
index 12997e390..c49a11582 100755
--- a/ci/travis/ci.sh
+++ b/ci/travis/ci.sh
@@ -238,7 +238,7 @@ install_ray() {
   (
     cd "${WORKSPACE_DIR}"/python
     build_dashboard_front_end
-    pip install -v -e .
+    pip install -v -v -e .
   )
 }