diff --git a/src/renderers/WebGLRenderer.js b/src/renderers/WebGLRenderer.js
index bebb469c3705e51d147c61eb0f3b98fa89e1157c..b93400218386ba633e89c504b25119c9ca085092 100644
--- a/src/renderers/WebGLRenderer.js
+++ b/src/renderers/WebGLRenderer.js
@@ -1475,6 +1475,7 @@ function WebGLRenderer( parameters ) {
 
 			material.onBeforeCompile( materialProperties.shader, _this );
 
+			// Computing code again as onBeforeCompile may have changed the shaders
 			code = programCache.getProgramCode( material, parameters );
 
 			program = programCache.acquireProgram( material, materialProperties.shader, parameters, code );