diff --git a/build/envsetup.sh b/build/envsetup.sh
index 3ca2af3..71ee442 100644
--- a/build/envsetup.sh
+++ b/build/envsetup.sh
@@ -18,6 +18,7 @@
 - repolastsync:    Prints date and time of last repo sync.
 - reposync:        Parallel repo sync using ionice and SCHED_BATCH.
 - repopick:        Utility to fetch changes from Gerrit.
+- sort-blobs-list: Sort proprietary-files.txt sections with LC_ALL=C.
 - installboot:     Installs a boot.img to the connected device.
 - installrecovery: Installs a recovery.img to the connected device.
 - blissify:        Sets up build environment using breakfast(),
@@ -931,6 +932,11 @@
     $T/vendor/bliss/build/tools/repopick.py $@
 }
 
+function sort-blobs-list() {
+    T=$(gettop)
+    $T/tools/extract-utils/sort-blobs-list.py $@
+}
+
 function fixup_common_out_dir() {
     common_out_dir=$(get_build_var OUT_DIR)/target/common
     target_device=$(get_build_var TARGET_DEVICE)