1 files changed, 1 insertions, 1 deletions

diff --git a/arch/x86/boot/early_serial_console.c b/arch/x86/boot/early_serial_console.c
index 030f4b93e255..407a8e26f0a7 100644
--- a/arch/x86/boot/early_serial_console.c
+++ b/arch/x86/boot/early_serial_console.c
@@ -58,7 +58,7 @@ static void parse_earlyprintk(void)
                 if (arg[pos] == ',')
                         pos++;
 
-                if (!strncmp(arg, "ttyS", 4)) {
+                if (!strncmp(arg + pos, "ttyS", 4)) {
                         static const int bases[] = { 0x3f8, 0x2f8 };
                         int idx = 0;