--- abuild-3.2.0_rc1+adelie/checkapk.in	2017-08-13 13:39:10.730229975 -0400
+++ abuild-3.2.0_rc1+adelie/checkapk.in	2018-09-15 17:52:51.160104742 -0400
@@ -72,7 +72,7 @@
 	fi
 
 	apk fetch --quiet --repositories-file $tmpdir/repositories --stdout $_pkgname \
-		| tar -zt | grep -v '^\.SIGN\.' | sort > filelist-$_pkgname-old \
+		| tar -ztf - | grep -v '^\.SIGN\.' | sort > filelist-$_pkgname-old \
 		|| die "failed to download old pkg, maybe run 'apk update'?"
 
 	tar -ztf "$filepath" | grep -v '^\.SIGN\.' | sort > "filelist-$_pkgname"