diff --git a/kernel/printk.c b/kernel/printk.c
index 6d9dedd..286d2c7 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -595,7 +595,7 @@
 		/* multi digit including the level and facility number */
 		char *endp = NULL;
 
-		if (p[1] < '0' && p[1] > '9')
+		if (p[1] < '0' || p[1] > '9')
 			return 0;
 
 		lev = (simple_strtoul(&p[1], &endp, 10) & 7);