diff --git a/src/Makefile b/src/Makefile
index acca04f..55a678e 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -26,10 +26,10 @@ keyboard: $(keyboard_OBJS)
 callbacks.o: callbacks.c
 	$(CC) $(keyboard_CFLAGS) -c callbacks.c
 
-keyboard.o: keyboard.c
+keyboard.o: keyboard.c callbacks.h keyboard.h
 	$(CC) $(keyboard_CFLAGS) -c keyboard.c
 
-main.o: main.c
+main.o: main.c keyboard.h
 	$(CC) $(keyboard_CFLAGS) -c main.c
 
 clean:
diff --git a/src/project.conf b/src/project.conf
index a952a3a..bc8ca0b 100644
--- a/src/project.conf
+++ b/src/project.conf
@@ -7,3 +7,9 @@ dist=Makefile,callbacks.h,keyboard.h
 [keyboard]
 type=binary
 sources=callbacks.c,keyboard.c,main.c
+
+[keyboard.c]
+depends=callbacks.h,keyboard.h
+
+[main.c]
+depends=keyboard.h