diff --git a/lib/stm32/f2/Makefile b/lib/stm32/f2/Makefile
index 3f3b71b3..40eb6a9f 100644
--- a/lib/stm32/f2/Makefile
+++ b/lib/stm32/f2/Makefile
@@ -43,6 +43,9 @@ OBJS            += crc_common_all.o dac_common_all.o dma_common_f24.o \
 		   flash_common_f234.o flash_common_f24.o hash_common_f24.o \
 		   crypto_common_f24.o exti_common_all.o
 
+OBJS            += usb.o usb_standard.o usb_control.o usb_fx07_common.o \
+                   usb_f107.o usb_f207.o
+
 VPATH += ../../usb:../:../../cm3:../common
 
 include ../../Makefile.include