diff --git a/client/src/models/account.ts b/client/src/models/account.ts
index ae2299e..e616ae1 100644
--- a/client/src/models/account.ts
+++ b/client/src/models/account.ts
@@ -70,10 +70,10 @@
   }
 
   getDisplayName() {
-    return this.details['Account.displayName'] ?? this.getDisplayUri();
+    return this.details['Account.displayName'] || this.getDisplayUri();
   }
 
   getDisplayNameNoFallback() {
-    return this.details['Account.displayName'] ?? this.getRegisteredName();
+    return this.details['Account.displayName'] || this.getRegisteredName();
   }
 }