diff --git a/public/update_engine_common.te b/public/update_engine_common.te
index 29d730c..8e454cc 100644
--- a/public/update_engine_common.te
+++ b/public/update_engine_common.te
@@ -30,7 +30,7 @@
 allow update_engine_common shell_exec:file rx_file_perms;
 
 # Allow update_engine_common to suspend, resume and kill the postinstall program.
-allow update_engine_common postinstall:process { signal sigstop };
+allow update_engine_common postinstall:process { signal sigstop sigkill };
 
 # access /proc/misc
 # Access is also granted to proc:file, but it is likely unneeded