diff --git a/packages/cache/src/internal/cacheHttpClient.ts b/packages/cache/src/internal/cacheHttpClient.ts
index 879d73f079..fd74f6b83a 100644
--- a/packages/cache/src/internal/cacheHttpClient.ts
+++ b/packages/cache/src/internal/cacheHttpClient.ts
@@ -43,7 +43,7 @@ function getCacheApiUrl(resource: string): string {
     throw new Error('Cache Service Url not found, unable to restore cache.')
   }
 
-  const url = `${baseUrl}_apis/artifactcache/${resource}`
+  const url = `${baseUrl.endsWith('/') ? baseUrl : `${baseUrl}/`}_apis/artifactcache/${resource}`
   core.debug(`Resource Url: ${url}`)
   return url
 }