diff --git a/internal/router/api/v1/account/register.go b/internal/router/api/v1/account/register.go
index 90a6db9..cfe91d7 100644
--- a/internal/router/api/v1/account/register.go
+++ b/internal/router/api/v1/account/register.go
@@ -56,8 +56,8 @@ func Register(ctx *context.Context) {
 		return
 	}
 
-	// Account exists
-	if account.Username != "" {
+	// Compare username
+	if account.Username == body.Username {
 		ctx.JSON(400, ctx.Error("UsernameTaken"))
 		return
 	}