diff --git a/cmds/installd/otapreopt.cpp b/cmds/installd/otapreopt.cpp
index 822ab7f..8eb7458 100644
--- a/cmds/installd/otapreopt.cpp
+++ b/cmds/installd/otapreopt.cpp
@@ -514,6 +514,8 @@
         // Make sure dex2oat is run with background priority.
         dexopt_flags |= DEXOPT_BOOTCOMPLETE | DEXOPT_IDLE_BACKGROUND_JOB;
 
+        parameters_.compilation_reason = "ab-ota";
+
         int res = dexopt(parameters_.apk_path,
                          parameters_.uid,
                          parameters_.pkgName,