1 files changed, 6 insertions, 0 deletions

diff --git a/tmk_core/protocol.mk b/tmk_core/protocol.mk
index d4ad50db6..359ddbfef 100644
--- a/tmk_core/protocol.mk
+++ b/tmk_core/protocol.mk
@@ -1,5 +1,11 @@
 PROTOCOL_DIR = protocol
 
+TMK_COMMON_SRC +=       \
+        $(PROTOCOL_DIR)/host.c \
+        $(PROTOCOL_DIR)/report.c \
+        $(PROTOCOL_DIR)/usb_device_state.c \
+        $(PROTOCOL_DIR)/usb_util.c \
+
 ifeq ($(strip $(USB_HID_ENABLE)), yes)
     include $(TMK_DIR)/protocol/usb_hid.mk
 endif