diff --git a/pxr/imaging/hdx/renderSetupTask.h b/pxr/imaging/hdx/renderSetupTask.h
index 6268917da2..272fe57c48 100644
--- a/pxr/imaging/hdx/renderSetupTask.h
+++ b/pxr/imaging/hdx/renderSetupTask.h
@@ -176,6 +176,8 @@ struct HdxRenderTaskParams
     GfVec4f pointColor;
     float pointSize;
     bool enableLighting;
+    // Note: enableIdRender is deprecated in favor of using the primId AOV, and 
+    // will be removed as a param soon.
     bool enableIdRender;
     float alphaThreshold;
     bool enableSceneMaterials;
diff --git a/pxr/usdImaging/usdImagingGL/renderParams.h b/pxr/usdImaging/usdImagingGL/renderParams.h
index 48fac08f35..e78478d237 100644
--- a/pxr/usdImaging/usdImagingGL/renderParams.h
+++ b/pxr/usdImaging/usdImagingGL/renderParams.h
@@ -69,6 +69,8 @@ class UsdImagingGLRenderParams
     bool forceRefresh;
     bool flipFrontFacing;
     UsdImagingGLCullStyle cullStyle;
+    // Note: enableIdRender is deprecated in favor of using the primId AOV, and 
+    // will be removed as a param soon.
     bool enableIdRender;
     bool enableLighting;
     bool enableSampleAlphaToCoverage;