diff --git a/content/module-reference/processing-modules/highpass.md b/content/module-reference/processing-modules/highpass.md
index df4befa6e6..90f938e77e 100644
--- a/content/module-reference/processing-modules/highpass.md
+++ b/content/module-reference/processing-modules/highpass.md
@@ -15,7 +15,7 @@ This module is primarily intended to be used in combination with a [_blend mode_
 
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-_**Note:** This module performs blurs in Lab color space, which can result in undesirable effects, and is no longer recommended. Instead, use the [contrast equalizer](./contrast-equalizer.md) module for fine sharpness or the [local contrast](./local-contrast.md) module for general sharpness._
+_**Note:** This module performs blurs in Lab color space, which can result in undesirable effects, and is no longer recommended. Instead, use the [contrast equalizer](./contrast-equalizer.md) module for fine sharpness or the [local contrast](./local-contrast.md) module for general sharpness._  One such effect is that highlights will be clipped **even in areas not selected by a mask** when using Lab or RGB(display) blending modes as a result of performing display-referred operations in the scene-referred portion of the [_pixel pipe_](../../darkroom/pixelpipe/the-pixelpipe-and-module-order.md).
 
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