diff --git a/CMakeLists.txt b/CMakeLists.txt
index d4274efd519..74343fe609a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,13 +2,6 @@
 
 cmake_minimum_required(VERSION 3.4.3)
 
-# CMake 3.1 and higher include generator expressions of the form
-# $<TARGETLIB:obj> in the SOURCES property.  These need to be
-# stripped everywhere that access the SOURCES property, so we just
-# defer to the OLD behavior of not including generator expressions
-# in the output for now.
-cmake_policy(SET CMP0051 OLD)
-
 if(POLICY CMP0068)
   cmake_policy(SET CMP0068 NEW)
   set(CMAKE_BUILD_WITH_INSTALL_NAME_DIR ON)