diff --git a/abuild.in b/abuild.in
index 6c57cf0..6d93e1f 100644
--- a/abuild.in
+++ b/abuild.in
@@ -1960,6 +1960,8 @@ checksum() {
 	done
 
 	msg "Updating the sha512sums in APKBUILD..."
+	md5sums=
+	sha256sums=
 	sha512sums="$(cd "$srcdir" && sha512sum $files)" \
 		|| die "sha512sum failed"
 	echo "sha512sums=\"$sha512sums\"" >>"$APKBUILD"