diff --git a/cmake/Mac.cmake b/cmake/Mac.cmake
index e02ba97a5..fde2255ea 100644
--- a/cmake/Mac.cmake
+++ b/cmake/Mac.cmake
@@ -1,5 +1,3 @@
-set(CMAKE_OSX_DEPLOYMENT_TARGET "10.10" CACHE STRING "Minimum OS X deployment version")
-
 # Code signing ID on Mac.
 # If this is falsey, codesigning is disabled.
 # '-' is ad-hoc codesign.