diff --git a/utopia.go b/utopia.go
index 357e43f..d926790 100644
--- a/utopia.go
+++ b/utopia.go
@@ -201,7 +201,7 @@ func (c *UtopiaClient) GetFinanceHistory(filters string, referenceNumber string)
 
 // GetBalance request account Crypton balance
 func (c *UtopiaClient) GetBalance() (float64, error) {
-	result, err := c.queryResultToFloat64("getBalance", nil)
+	result, err := c.queryResultToFloat64("getBalance", map[string]interface{}{})
 	if err != nil {
 		return 0, err
 	}