diff --git a/Cargo.toml b/Cargo.toml
index eeb2f52..c068d64 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,7 @@ name = "termion"
 version = "0.1.0"
 authors = ["Ticki <Ticki@users.noreply.github.com>"]
 
-[target.'cfg(unix)'.dependencies]
+[target.'cfg(not(target_os = "redox"))'.dependencies]
 libc = "0.2.8"
 
 [features]