diff --git a/Cargo.toml b/Cargo.toml
index 8becbb0..1564f03 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,6 +12,9 @@ clap = "2.24"
 glob = "0.2"
 byteorder = "1"
 
+[dev-dependencies]
+tempdir = "0.3"
+
 [lib]
 
 [[bin]]