diff --git a/doc/articles/controls/GLCanvasElement.md b/doc/articles/controls/GLCanvasElement.md
index 403107cfea2a..18bc78a96ccc 100644
--- a/doc/articles/controls/GLCanvasElement.md
+++ b/doc/articles/controls/GLCanvasElement.md
@@ -120,7 +120,7 @@ public class SimpleTriangleGlCanvasElement()
         var vertexCode =
         $$"""
         {{versionDef}}
-        precision highp float; # for OpenGL ES compatibility
+        precision highp float; // for OpenGL ES compatibility
 
         layout (location = 0) in vec3 aPosition;
         out vec4 vertexColor;
@@ -135,7 +135,7 @@ public class SimpleTriangleGlCanvasElement()
         var fragmentCode =
         $$"""
         {{versionDef}}
-        precision highp float; # for OpenGL ES compatibility
+        precision highp float; // for OpenGL ES compatibility
 
         out vec4 out_color;
         in vec4 vertexColor;
diff --git a/src/SamplesApp/UITests.Shared/Windows_UI_Composition/RotatingCubeGlCanvasElement.cs b/src/SamplesApp/UITests.Shared/Windows_UI_Composition/RotatingCubeGlCanvasElement.cs
index 1a1bea6feca5..07b1e327a772 100644
--- a/src/SamplesApp/UITests.Shared/Windows_UI_Composition/RotatingCubeGlCanvasElement.cs
+++ b/src/SamplesApp/UITests.Shared/Windows_UI_Composition/RotatingCubeGlCanvasElement.cs
@@ -69,7 +69,7 @@ public class RotatingCubeGlCanvasElement() : GLCanvasElement(1200, 800, null)
 
 		private readonly string _vertexShaderSource =
 		"""
-		precision highp float; # for OpenGL ES compatibility
+		precision highp float; // for OpenGL ES compatibility
 
 		layout(location = 0) in vec3 pos;
 		layout(location = 1) in vec3 vertex_color;
@@ -86,7 +86,7 @@ void main() {
 
 		private readonly string FragmentShaderSource =
 		"""
-		precision highp float; # for OpenGL ES compatibility
+		precision highp float; // for OpenGL ES compatibility
 
 		in vec3 color;
 
diff --git a/src/SamplesApp/UITests.Shared/Windows_UI_Composition/SimpleTriangleGlCanvasElement.cs b/src/SamplesApp/UITests.Shared/Windows_UI_Composition/SimpleTriangleGlCanvasElement.cs
index 50ef09912fcf..ec43239acfac 100644
--- a/src/SamplesApp/UITests.Shared/Windows_UI_Composition/SimpleTriangleGlCanvasElement.cs
+++ b/src/SamplesApp/UITests.Shared/Windows_UI_Composition/SimpleTriangleGlCanvasElement.cs
@@ -44,7 +44,7 @@ unsafe protected override void Init(GL gl)
 			var vertexCode =
 			$$"""
 			{{versionDef}}
-			precision highp float; # for OpenGL ES compatibility
+			precision highp float; // for OpenGL ES compatibility
 
 			layout (location = 0) in vec3 aPosition;
 			out vec4 vertexColor;
@@ -59,7 +59,7 @@ void main()
 			var fragmentCode =
 			$$"""
 			{{versionDef}}
-			precision highp float; # for OpenGL ES compatibility
+			precision highp float; // for OpenGL ES compatibility
 
 			out vec4 out_color;
 			in vec4 vertexColor;