diff --git a/src/services/api.ts b/src/services/api.ts
index 746dbf46b366f655b38a83557b1f6c00dd69a1b6..a9c416af45ad6f022865fdc0fa417abe6ae1072b 100644
--- a/src/services/api.ts
+++ b/src/services/api.ts
@@ -79,7 +79,7 @@ export namespace Transforms {
 }
 
 
-const backendUrl = (process.env.VITE_API_HOST ?? window.location.host) + (process.env.VITE_API_PREFIX ?? '/api') // process.env.API_URL ?? 'http://localhost:8080' // import.meta.env?.VITE_API_URL ||
+const backendUrl = (process.env.VITE_API_HOST ?? (window.location.protocol + window.location.host)) + (process.env.VITE_API_PREFIX ?? '/api') // process.env.API_URL ?? 'http://localhost:8080' // import.meta.env?.VITE_API_URL ||
 console.log(`Using following (backend) API_URL: ${backendUrl}`)
 // const f = jsYaml.loadAll('./api-schema/openapi.yaml')