diff --git a/lrzip.c b/lrzip.c
index 715fea6..31b111a 100644
--- a/lrzip.c
+++ b/lrzip.c
@@ -879,7 +879,9 @@ static double percentage(i64 num, i64 den)
 
 	if (den < 100) {
 		d_num = num * 100;
-		d_den = den ? : 1;
+		d_den = den;
+		if (!d_den)
+			d_den = 1;
 	} else {
 		d_num = num;
 		d_den = den / 100;