diff --git a/tests/filter_addresses b/tests/filter_addresses
new file mode 100755
index 0000000..2ea84cc
--- /dev/null
+++ b/tests/filter_addresses
@@ -0,0 +1,4 @@
+#! /bin/sh
+
+sed "s/0x[0-9A-Fa-f]\+/0x......../g"
+