diff --git a/.gitmodules b/.gitmodules
index d5db00a..abcf5d8 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -10,6 +10,9 @@
 [submodule "libs/sws"]
 	path = libs/sws
 	url = https://github.com/valinet/sws
+[submodule "libs/zlib"]
+	path = libs/zlib
+	url = https://github.com/madler/zlib
 [submodule "ep_dwm"]
 	path = ep_dwm
 	url = https://github.com/valinet/ep_dwm