diff --git a/CHANGES.md b/CHANGES.md
index 0bdb0ce31a75..4c81820e8f41 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -15,6 +15,7 @@ Change Log
 * Fixed an issue where some ground polygons crossing the Prime Meridian would have incorrect bounding rectangles. [#7533](https://github.com/AnalyticalGraphicsInc/cesium/pull/7533)
 * Fixed an issue where polygons on terrain using rhumb lines where being rendered incorrectly. [#7538](https://github.com/AnalyticalGraphicsInc/cesium/pulls/7538)
 * Fixed an issue with `EllipsoidRhumbLines.findIntersectionWithLongitude` when longitude was IDL. [#7551](https://github.com/AnalyticalGraphicsInc/cesium/issues/7551)
+* Fixed model silhouette colors when rendering with high dynamic range. [#7563](https://github.com/AnalyticalGraphicsInc/cesium/pull/7563)
 * Fixed an issue with ground polylines on globes that use ellipsoids other than WGS84. [#7552](https://github.com/AnalyticalGraphicsInc/cesium/issues/7552)
 
 ### 1.54 - 2019-02-01
diff --git a/Source/Scene/Model.js b/Source/Scene/Model.js
index fbf1cfcde784..5f22e191f742 100644
--- a/Source/Scene/Model.js
+++ b/Source/Scene/Model.js
@@ -3874,7 +3874,7 @@ define([
             'uniform vec4 gltf_silhouetteColor; \n' +
             'void main() \n' +
             '{ \n' +
-            '    gl_FragColor = gltf_silhouetteColor; \n' +
+            '    gl_FragColor = czm_gammaCorrect(gltf_silhouetteColor); \n' +
             '}';
 
         return ShaderProgram.fromCache({