diff --git a/src/aquarius/Aquarius.ts b/src/aquarius/Aquarius.ts
index f1b3063..e082394 100644
--- a/src/aquarius/Aquarius.ts
+++ b/src/aquarius/Aquarius.ts
@@ -230,7 +230,7 @@ export class Aquarius {
         signature: string
     ): Promise<string> {
         did = did && DID.parse(did)
-        const fullUrl = `${this.url}${apiPath}/owner/update//${did.getDid()}`
+        const fullUrl = `${this.url}${apiPath}/owner/update/${did.getDid()}`
         const result = await this.fetch
             .put(
                 fullUrl,