diff --git a/2015/Makefile b/2015/Makefile
index cb4535e..d816b4f 100644
--- a/2015/Makefile
+++ b/2015/Makefile
@@ -1,4 +1,4 @@
 YEAR := 2015
-EXTRA_LIBS := -lbsd
+EXTRA_LIBS := -lmd
 
 include ../scripts/common.mk