diff --git a/src/cli/commands/build.js b/src/cli/commands/build.js
index f94d51cde..873c20430 100644
--- a/src/cli/commands/build.js
+++ b/src/cli/commands/build.js
@@ -63,6 +63,7 @@ function stopWithHelp(...msgs) {
  * @param {string} inputFile
  * @param {string} configFile
  * @param {string} outputFile
+ * @param {boolean} autoprefix
  * @return {Promise}
  */
 function build(inputFile, configFile, outputFile, autoprefix) {
@@ -85,6 +86,7 @@ function build(inputFile, configFile, outputFile, autoprefix) {
  * @param {string} inputFile
  * @param {string} configFile
  * @param {string} outputFile
+ * @param {boolean} autoprefix
  * @return {Promise}
  */
 function buildToStdout(inputFile, configFile, outputFile, autoprefix) {
@@ -99,6 +101,7 @@ function buildToStdout(inputFile, configFile, outputFile, autoprefix) {
  * @param {string} inputFile
  * @param {string} configFile
  * @param {string} outputFile
+ * @param {boolean} autoprefix
  * @param {int[]} startTime
  * @return {Promise}
  */