diff --git a/src/keys.rs b/src/keys.rs
index 80f3e9a..b883de4 100644
--- a/src/keys.rs
+++ b/src/keys.rs
@@ -12,6 +12,7 @@ pub const SECRET_KEY: &str = "SECRET_KEY";
 // Environment key for root directory for the icarus app
 pub const ROOT_DIRECTORY: &str = "ROOT_DIRECTORY";
 
+// Environment key for icarus api url
 pub const ICARUS_BASE_API_URL: &str = "ICARUS_BASE_API_URL";
 
 pub mod error {