diff --git a/src/3rdParty/zlib.CMakeLists.txt b/src/3rdParty/zlib.CMakeLists.txt
deleted file mode 100644
index ebe7bee184..0000000000
--- a/src/3rdParty/zlib.CMakeLists.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-if(MSVC)
-		 add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
-endif(MSVC)
-
-add_library(z adler32.c compress.c crc32.c gzio.c uncompr.c deflate.c trees.c
-		 zutil.c inflate.c infback.c inftrees.c inffast.c)
-
-if(BUILD_SHARED_LIBS)
-		 install(TARGETS Z DESTINATION lib)
-endif(BUILD_SHARED_LIBS)