diff --git a/Cargo.toml b/Cargo.toml
index 96936a8..71fac86 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,6 +14,7 @@ keywords = ["date", "time", "calendar"]
 categories = ["date-and-time"]
 readme = "README.md"
 license = "MIT/Apache-2.0"
+exclude = ["/ci/*", "/.travis.yml", "/appveyor.yml", "/Makefile"]
 
 [badges]
 travis-ci = { repository = "chronotope/chrono" }