diff --git a/Makefile b/Makefile
index 2ffd0de..5f02dd1 100644
--- a/Makefile
+++ b/Makefile
@@ -22,7 +22,7 @@ generator: generator.o
 %.o: %.c common.h
 	$(CC) $(CFLAGS) $^
 
-docs:
+docs: Doxyfile supervisor.c generator.c common.h
 	doxygen Doxyfile
 
 clean: