diff --git a/Android.mk b/Android.mk
index 08dbf6e..b2c06e8 100644
--- a/Android.mk
+++ b/Android.mk
@@ -54,6 +54,7 @@
     data.cpp \
     partition.cpp \
     partitionmanager.cpp \
+    progresstracking.cpp \
     twinstall.cpp \
     twrp-functions.cpp \
     openrecoveryscript.cpp \