diff --git a/.gitmodules b/.gitmodules
index 71916589..503e0586 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -2,10 +2,7 @@
 	path = third-party/pugixml
 	url = https://github.com/zeux/pugixml.git
 	branch = master
-[submodule "third-party/zlib"]
-	path = third-party/zlib
-	url = https://github.com/madler/zlib.git
-	branch = master
+
 [submodule "third-party/cxxtest"]
 	path = third-party/cxxtest
 	url = https://github.com/CxxTest/cxxtest