diff --git a/build/tasks/styles.js b/build/tasks/styles.js
index 7dd5f6d..4ae9727 100644
--- a/build/tasks/styles.js
+++ b/build/tasks/styles.js
@@ -47,8 +47,8 @@ export const developmentPostCSSOptions = Object.assign({}, defaultPostCSSOptions
 export const productionPostCSSOptions  = Object.assign({}, defaultPostCSSOptions);
 
 /**
- * @const {object} developmentStylesArgs - The predefined `compileStyles()` options for development.
- * @const {object} productionStylesArgs  - The predefined `compileStyles()` options for production.
+ * @const {object|boolean} developmentStylesArgs - The predefined `compileStyles()` options for development.
+ * @const {object|boolean} productionStylesArgs  - The predefined `compileStyles()` options for production.
  */
 export const developmentStylesArgs = [
     developmentSassOptions,