--- linux-4.9.37/scripts/setlocalversion	2017-07-12 16:42:41.000000000 +0300
+++ linux-4.9.y/scripts/setlocalversion	2021-06-07 13:01:34.000000000 +0300
@@ -153,6 +153,7 @@
 	res="$res$(collect_files "$srctree"/localversion*)"
 fi
 
+LOCALVERSION=
 # CONFIG_LOCALVERSION and LOCALVERSION (if set)
 res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}"