diff --git a/cointop/portfolio.go b/cointop/portfolio.go
index 4526e46..aefb44c 100644
--- a/cointop/portfolio.go
+++ b/cointop/portfolio.go
@@ -349,7 +349,7 @@ func (ct *Cointop) UpdatePortfolioUpdateMenu() error {
 	coin := ct.HighlightedRowCoin()
 	exists := ct.PortfolioEntryExists(coin)
 	value := strconv.FormatFloat(ct.CoinHoldings(coin), 'f', -1, 64)
-	log.Debug("UpdatePortfolioUpdateMenu() holdings %v", value)
+	log.Debugf("UpdatePortfolioUpdateMenu() holdings %v", value)
 	var mode string
 	var current string
 	var submitText string