1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/s390/net/ctcm_main.h b/drivers/s390/net/ctcm_main.h
index 8e10ee86a5ee..d77cce3fe4d4 100644
--- a/drivers/s390/net/ctcm_main.h
+++ b/drivers/s390/net/ctcm_main.h
@@ -104,7 +104,7 @@
 #define READ                    0
 #define WRITE                   1
 
-#define CTCM_ID_SIZE            BUS_ID_SIZE+3
+#define CTCM_ID_SIZE            20+3
 
 struct ctcm_profile {
         unsigned long maxmulti;