diff --git a/CMakeLists.txt b/CMakeLists.txt
index 75dbc0098..9a53310bc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -783,12 +783,12 @@ if (WIN32)
   list(APPEND ENGINE_SOURCES res/furnace.rc)
 endif()
 
-#if (APPLE)
-#  if (CMAKE_OSX_DEPLOYMENT_TARGET VERSION_LESS 10.12)
-#    list(APPEND DEPENDENCIES_INCLUDE_DIRS extern/macports-legacy-support/include)
-#    list(APPEND ENGINE_SOURCES extern/macports-legacy-support/src/time.c)
-#  endif()
-#endif()
+if (APPLE)
+  if (CMAKE_OSX_DEPLOYMENT_TARGET VERSION_LESS 10.12)
+    list(APPEND DEPENDENCIES_INCLUDE_DIRS extern/macports-legacy-support/include)
+    list(APPEND ENGINE_SOURCES extern/macports-legacy-support/src/time.c)
+  endif()
+endif()
 
 set(CLI_SOURCES
 src/cli/cli.cpp