diff --git a/SwiftCompilerSources/CMakeLists.txt b/SwiftCompilerSources/CMakeLists.txt
index 063e1410b2a88..90548455d45e0 100644
--- a/SwiftCompilerSources/CMakeLists.txt
+++ b/SwiftCompilerSources/CMakeLists.txt
@@ -99,6 +99,7 @@ function(add_swift_compiler_modules_library name)
                         ${ARGN})
 
   set(swift_compile_options
+      "-color-diagnostics"
       "-Xfrontend" "-validate-tbd-against-ir=none"
       "-Xfrontend" "-enable-experimental-cxx-interop"
       "-Xfrontend" "-disable-target-os-checking"
diff --git a/cmake/modules/AddPureSwift.cmake b/cmake/modules/AddPureSwift.cmake
index f2569159bf64f..14abcd1690e60 100644
--- a/cmake/modules/AddPureSwift.cmake
+++ b/cmake/modules/AddPureSwift.cmake
@@ -57,6 +57,10 @@ function(_add_host_swift_compile_options name)
 
   target_compile_options(${name} PRIVATE $<$<COMPILE_LANGUAGE:Swift>:-target;${SWIFT_HOST_TRIPLE}>)
   _add_host_variant_swift_sanitizer_flags(${name})
+
+  target_compile_options(${name} PRIVATE
+    $<$<COMPILE_LANGUAGE:Swift>:-color-diagnostics>
+  )
 endfunction()
 
 function(_set_pure_swift_link_flags name relpath_to_lib_dir)