diff --git a/config/linux/atk/BUILD.gn b/config/linux/atk/BUILD.gn
index b77d76332..aad2efa60 100644
--- a/config/linux/atk/BUILD.gn
+++ b/config/linux/atk/BUILD.gn
@@ -30,11 +30,5 @@ pkg_config("atk") {
   defines = [
     "ATK_LIB_DIR=\"$atk_lib_dir\"",
     "USE_ATK_BRIDGE",
-
-    # The AtkValue interface methods we implement and test have been deprecated
-    # in favor of new API. But that new API cannot be used until corresponding
-    # support has been added to AT-SPI2 and we stop supporting earlier versions
-    # of ATK (i.e. < 2.12).
-    "ATK_DISABLE_DEPRECATION_WARNINGS",
   ]
 }