diff --git a/Makefile b/Makefile
index c231d07..cc2b62f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-DEPS = utf8 lowdown sxml-transforms clojurian symbol-utils scss srfi-1 srfi-13 srfi-14
+DEPS = utf8 lowdown sxml-transforms clojurian symbol-utils scss srfi-1 srfi-13 srfi-14 ersatz
 SRC = main.scm
 DIR_INSTALL ?= /usr/local/bin
 DIR_BUILD = .