diff --git a/Cargo.toml b/Cargo.toml
index f0f728e..4d8851d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -56,7 +56,7 @@ zip = "0.6.6"
 [target.'cfg(windows)'.dependencies]
 known-folders = "1.1.0"
 winreg = "0.52.0"
-winapi = { version = "0.3.9", features = ["wincon"], default-features = false }
+winapi = { version = "0.3.9", features = ["wincon", "processenv"], default-features = false }
 
 [target.'cfg(windows)'.build-dependencies]
 winres = "0.1.12"