diff --git a/variants/PORTENTA_C33/tusb_config.h b/variants/PORTENTA_C33/tusb_config.h
index 2324f39fe..82694bd4a 100644
--- a/variants/PORTENTA_C33/tusb_config.h
+++ b/variants/PORTENTA_C33/tusb_config.h
@@ -103,7 +103,7 @@
 
 #define CFG_TUH_MSC              1
 #define CFG_TUH_HUB              1
-#define CFG_TUH_DEVICE_MAX       (3*CFG_TUH_HUB + 1)
+#define CFG_TUH_DEVICE_MAX       (3*CFG_TUH_HUB)
 #define CFG_TUH_ENDPOINT_MAX     8
 #define CFG_TUH_API_EDPT_XFER    1