diff --git a/cc-test/Cargo.toml b/cc-test/Cargo.toml
index 2b2013e50..66f2d0144 100644
--- a/cc-test/Cargo.toml
+++ b/cc-test/Cargo.toml
@@ -3,6 +3,7 @@ name = "cc-test"
 version = "0.1.0"
 authors = ["Alex Crichton <alex@alexcrichton.com>"]
 edition = "2018"
+publish = false
 
 [lib]
 name = "cc_test"