diff --git a/helpers/sums b/helpers/sums
deleted file mode 100644
index 8b13789..0000000
--- a/helpers/sums
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/helpers/sums.md5 b/helpers/sums.md5
new file mode 100644
index 0000000..ee37c2e
--- /dev/null
+++ b/helpers/sums.md5
@@ -0,0 +1,2 @@
+e7f3b25223ac4dfd5e30a0b55bb3ff6c  ips.csv
+b038fdb8f655798207bd28de3a004706  latlon