diff --git a/.github/actions/setup-npmrc/action.yml b/.github/actions/setup-npmrc/action.yml
index 137451740f..203247bf8a 100644
--- a/.github/actions/setup-npmrc/action.yml
+++ b/.github/actions/setup-npmrc/action.yml
@@ -19,6 +19,6 @@ runs:
       run: |-
         echo ""@google-gemini:registry=https://npm.pkg.github.com"" > ~/.npmrc
         echo ""//npm.pkg.github.com/:_authToken=${INPUTS_GITHUB_TOKEN}"" >> ~/.npmrc
-        echo ""@google:registry=https://wombat-dressing-room.appspot.com"" >> ~/.npmrc
+        echo ""@google:registry=https://wombat-dressing-room.appspot.com/"" >> ~/.npmrc
       env:
         INPUTS_GITHUB_TOKEN: '${{ inputs.github-token }}'
diff --git a/.npmrc b/.npmrc
index 4865e53881..eddcfa6110 100644
--- a/.npmrc
+++ b/.npmrc
@@ -1 +1 @@
-@google:registry=https://wombat-dressing-room.appspot.com
\ No newline at end of file
+@google:registry=https://wombat-dressing-room.appspot.com/
\ No newline at end of file