1 files changed, 5 insertions, 1 deletions

diff --git a/protocol/pjrc.mk b/protocol/pjrc.mk
index 27f908b1c..5a4461382 100644
--- a/protocol/pjrc.mk
+++ b/protocol/pjrc.mk
@@ -7,7 +7,11 @@ SRC +=	$(PJRC_DIR)/main.c \
         $(PJRC_DIR)/usb.c
 
 # Option modules
-ifdef $(or MOUSEKEY_ENABLE, PS2_MOUSE_ENABLE)
+ifdef MOUSEKEY_ENABLE
+    SRC += $(PJRC_DIR)/usb_mouse.c
+endif
+
+ifdef PS2_MOUSE_ENABLE
     SRC += $(PJRC_DIR)/usb_mouse.c
 endif