diff --git a/modules/desktop_capture/BUILD.gn b/modules/desktop_capture/BUILD.gn
index a45c339de8..735616b633 100644
--- a/modules/desktop_capture/BUILD.gn
+++ b/modules/desktop_capture/BUILD.gn
@@ -124,10 +124,12 @@ if (rtc_include_tests) {
     if (rtc_desktop_capture_supported) {
       sources += [
         "screen_capturer_helper_unittest.cc",
-        "screen_capturer_mac_unittest.cc",
         "screen_capturer_unittest.cc",
         "window_capturer_unittest.cc",
       ]
+      if (is_mac) {
+        sources += [ "screen_capturer_mac_unittest.cc" ]
+      }
       deps += [ ":desktop_capture_mock" ]
       public_configs = [ ":x11_config" ]
     }