diff --git a/Cargo.toml b/Cargo.toml
index af003fd336..9f0b62d88a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,6 +16,7 @@ platform = { path = "platform" }
 ctype = { path = "src/ctype" }
 fcntl = { path = "src/fcntl" }
 grp = { path = "src/grp" }
+mman = { path = "src/mman" }
 stdio = { path = "src/stdio" }
 stdlib = { path = "src/stdlib" }
 string = { path = "src/string" }