diff --git a/sdk/BUILD.gn b/sdk/BUILD.gn
index 79b483df14..d63f416790 100644
--- a/sdk/BUILD.gn
+++ b/sdk/BUILD.gn
@@ -462,6 +462,9 @@ if (is_ios || is_mac) {
           "OpenGL.framework",
         ]
       }
+
+      # TODO(bugs.webrtc.org/12937): Remove OpenGL deprecation warning
+      # workaround.
       defines = [ "GLES_SILENCE_DEPRECATION" ]
 
       deps = [
@@ -500,6 +503,9 @@ if (is_ios || is_mac) {
           "objc/components/renderer/opengl/RTCEAGLVideoView.h",
           "objc/components/renderer/opengl/RTCEAGLVideoView.m",
         ]
+
+        # TODO(bugs.webrtc.org/12937): Remove OpenGL deprecation warning
+        # workaround.
         defines = [ "GLES_SILENCE_DEPRECATION" ]
       }
       if (is_mac) {
@@ -1039,6 +1045,10 @@ if (is_ios || is_mac) {
             "objc/unittests/nalu_rewriter_xctest.mm",
           ]
 
+          # TODO(bugs.webrtc.org/12937): Remove OpenGL deprecation warning
+          # workaround.
+          defines = [ "GLES_SILENCE_DEPRECATION" ]
+
           # TODO(peterhanspers): Reenable these tests on simulator.
           # See bugs.webrtc.org/7812
           if (target_environment != "simulator") {