diff --git a/PREUPLOAD.cfg b/PREUPLOAD.cfg
index 543f0edbf8359..e731138ff40d1 100644
--- a/PREUPLOAD.cfg
+++ b/PREUPLOAD.cfg
@@ -9,6 +9,8 @@ hidden_api_txt_checksorted_hook = ${REPO_ROOT}/frameworks/base/tools/hiddenapi/c
 
 hidden_api_txt_exclude_hook = ${REPO_ROOT}/frameworks/base/tools/hiddenapi/exclude.sh ${PREUPLOAD_COMMIT} ${REPO_ROOT}
 
+ktlint_hook = ${REPO_ROOT}/prebuilts/ktlint/ktlint.py -f ${PREUPLOAD_FILES}
+
 owners_hook = ${REPO_ROOT}/frameworks/base/tools/aosp/aosp_sha.sh ${PREUPLOAD_COMMIT} "OWNERS$"
 
 shell_hook = ${REPO_ROOT}/frameworks/base/tools/aosp/aosp_sha.sh ${PREUPLOAD_COMMIT} "^packages/Shell/"