diff --git a/terragrunt/modules/release-distribution/lambdas/doc-router/index.js b/terragrunt/modules/release-distribution/lambdas/doc-router/index.js
index 722fd538a..4b67701a8 100644
--- a/terragrunt/modules/release-distribution/lambdas/doc-router/index.js
+++ b/terragrunt/modules/release-distribution/lambdas/doc-router/index.js
@@ -67,11 +67,11 @@ exports.handler = (event, context, callback) => {
     }
 
     // Forward patch versioned documentation as-is.
-    if (/^(\d+)\.(\d+).(\d+)\/(.*)/.test(request.uri)) {
+    if (/^\/(\d+)\.(\d+).(\d+)\/(.*)/.test(request.uri)) {
         return callback(null, request);
     }
     // Include patch version 0 if minor versioned documentation is requested
-    const minor_versioned_pattern = /^\/?(\d+)\.(\d+)\/(.*)/
+    const minor_versioned_pattern = /^\/(\d+)\.(\d+)\/(.*)/
     if (minor_versioned_pattern.test(request.uri)) {
         const patched_uri = request.uri.replace(minor_versioned_pattern, "/$1.$2.0/$3");
         return temp_redirect(patched_uri, callback);