diff --git a/src/lv_core/lv_core.mk b/src/lv_core/lv_core.mk
index 5cd51bfb5..eb1c5e0ca 100644
--- a/src/lv_core/lv_core.mk
+++ b/src/lv_core/lv_core.mk
@@ -4,6 +4,7 @@ CSRCS += lv_disp.c
 CSRCS += lv_obj.c
 CSRCS += lv_refr.c
 CSRCS += lv_style.c
+CSRCS += lv_debug.c
 
 DEPPATH += --dep-path $(LVGL_DIR)/lvgl/src/lv_core
 VPATH += :$(LVGL_DIR)/lvgl/src/lv_core