diff --git a/server/command.go b/server/command.go
index a854ffa..fdd76f6 100644
--- a/server/command.go
+++ b/server/command.go
@@ -159,6 +159,13 @@ func (p *Plugin) handlePersonaSwitch(args *model.CommandArgs, personaID string)
     if err := p.SavePersonaOverride(args.UserId, args.ChannelId, personaID); err != nil {
         return p.response("Failed to save persona: " + err.Error()), nil
     }
+    // Auto-reset conversation history so old persona context doesn't bleed.
+    if p.conversationStore != nil {
+        p.conversationStore.Reset(args.UserId, args.ChannelId)
+    }
+    if p.engagementEngine != nil {
+        p.engagementEngine.Sleep(args.UserId, args.ChannelId)
+    }
     return p.response("Persona switched to: " + personaID + ". @matty to test."), nil
 }