diff --git a/synthtool/gcp/templates/python_library/.kokoro/docs/docs-presubmit.cfg b/synthtool/gcp/templates/python_library/.kokoro/docs/docs-presubmit.cfg
index 91f8a3be0..4c6fea6a0 100644
--- a/synthtool/gcp/templates/python_library/.kokoro/docs/docs-presubmit.cfg
+++ b/synthtool/gcp/templates/python_library/.kokoro/docs/docs-presubmit.cfg
@@ -18,7 +18,7 @@ env_vars: {
 
 env_vars: {
     key: "TRAMPOLINE_BUILD_FILE"
-    value: github/{{ metadata['repo']['repo'].split('/')[1] }}/.kokoro/build.sh"
+    value: "github/{{ metadata['repo']['repo'].split('/')[1] }}/.kokoro/build.sh"
 }
 
 # Only run this nox session.