diff --git a/drivers/isdn/capi/kcapi.c b/drivers/isdn/capi/kcapi.c
index e69c4bf557bf8c2647ddbee2bfd62978c131238d..ae24848af2332456289a7fe261eef53f674262c1 100644
--- a/drivers/isdn/capi/kcapi.c
+++ b/drivers/isdn/capi/kcapi.c
@@ -798,7 +798,7 @@ u16 capi20_get_serial(u32 contr, u8 serial[CAPI_SERIAL_LEN])
 	u16 ret;
 
 	if (contr == 0) {
-		strlcpy(serial, driver_serial, CAPI_SERIAL_LEN);
+		strscpy(serial, driver_serial, CAPI_SERIAL_LEN);
 		return CAPI_NOERROR;
 	}
 
@@ -806,7 +806,7 @@ u16 capi20_get_serial(u32 contr, u8 serial[CAPI_SERIAL_LEN])
 
 	ctr = get_capi_ctr_by_nr(contr);
 	if (ctr && ctr->state == CAPI_CTR_RUNNING) {
-		strlcpy(serial, ctr->serial, CAPI_SERIAL_LEN);
+		strscpy(serial, ctr->serial, CAPI_SERIAL_LEN);
 		ret = CAPI_NOERROR;
 	} else
 		ret = CAPI_REGNOTINSTALLED;