diff --git a/src/console/vtxprintf.c b/src/console/vtxprintf.c
index 88295a2c1a..63e670396d 100644
--- a/src/console/vtxprintf.c
+++ b/src/console/vtxprintf.c
@@ -106,7 +106,7 @@ static int number(void (*tx_byte)(unsigned char byte, void *data),
 		precision = i;
 	size -= precision;
 	if (!(type&(ZEROPAD+LEFT)))
-		while (size-->0)
+		while (size-- > 0)
 			call_tx(' '), count++;
 	if (sign)
 		call_tx(sign), count++;