diff --git a/util/crossgcc/sum/expat-2.1.0.tar.gz.cksum b/util/crossgcc/sum/expat-2.1.0.tar.gz.cksum
new file mode 100644
index 0000000..23ee87a
--- /dev/null
+++ b/util/crossgcc/sum/expat-2.1.0.tar.gz.cksum
@@ -0,0 +1 @@
+b08197d146930a5543a7b99e871cba3da614f6f0  tarballs/expat-2.1.0.tar.gz