diff --git a/src/tui/usage/data.ts b/src/tui/usage/data.ts
index 0a2a763..8aade1f 100644
--- a/src/tui/usage/data.ts
+++ b/src/tui/usage/data.ts
@@ -88,7 +88,7 @@ export async function fetchUsage(limit = 10000): Promise<UsageStats | null> {
     const entries = result.output as UsageTrackingEntry[] | undefined;
     const entriesArray = Array.isArray(entries) ? entries : [];
     const suffix = getNpubSuffix(await loadConfig());
-    const suffixStr = suffix ? `_${suffix}` : null;
+    const suffixStr = suffix ? `-${suffix}` : null;
     const visibleEntries = suffixStr
       ? entriesArray
         .filter((entry) => entry.client?.endsWith(suffixStr))
diff --git a/src/utils/clients.ts b/src/utils/clients.ts
index e316bb8..19430c8 100644
--- a/src/utils/clients.ts
+++ b/src/utils/clients.ts
@@ -34,7 +34,7 @@ export function addSuffixToId(id: string, suffix: string): string {
  * Remove suffix from a client ID if present.
  */
 export function removeSuffixFromId(id: string, suffix: string): string {
-  const suffixStr = `_${suffix}`;
+  const suffixStr = `-${suffix}`;
   if (id.endsWith(suffixStr)) {
     return id.slice(0, -suffixStr.length);
   }
@@ -109,7 +109,7 @@ export async function getClientsList(): Promise<ClientEntry[]> {
   const suffix = config.daemonUrl ? getNpubSuffix(config) : null;
 
   return clients
-    .filter((c) => !suffix || c.id.endsWith(`_${suffix}`))
+    .filter((c) => !suffix || c.id.endsWith(`-${suffix}`))
     .map((c) => ({
       clientId: suffix ? removeSuffixFromId(c.id, suffix) : c.id,
       name: c.name,