diff --git a/include/configs/stamp9g20.h b/include/configs/stamp9g20.h
index a997331..95fc26b 100644
--- a/include/configs/stamp9g20.h
+++ b/include/configs/stamp9g20.h
@@ -165,6 +165,7 @@
 
 /* USB configuration */
 #define CONFIG_USB_ATMEL
+#define CONFIG_USB_ATMEL_CLK_SEL_PLLB
 #define CONFIG_USB_OHCI_NEW
 #define CONFIG_USB_STORAGE
 #define CONFIG_DOS_PARTITION