diff --git a/Cargo.lock b/Cargo.lock
index 446e835..605196f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -168,6 +168,26 @@ dependencies = [
  "crossbeam-utils",
 ]
 
+[[package]]
+name = "const_format"
+version = "0.2.34"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "126f97965c8ad46d6d9163268ff28432e8f6a1196a55578867832e3049df63dd"
+dependencies = [
+ "const_format_proc_macros",
+]
+
+[[package]]
+name = "const_format_proc_macros"
+version = "0.2.34"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d57c2eccfb16dbac1f4e61e206105db5820c9d26c3c472bc17c774259ef7744"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
+
 [[package]]
 name = "crossbeam-utils"
 version = "0.8.21"
@@ -277,9 +297,10 @@ checksum = "f154ce46856750ed433c8649605bf7ed2de3bc35fd9d2a9f30cddd873c80cb08"
 
 [[package]]
 name = "icarus_envy"
-version = "0.2.0"
+version = "0.2.1"
 dependencies = [
  "async-std",
+ "const_format",
  "dotenvy",
 ]
 
@@ -458,6 +479,12 @@ version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5a5f39404a5da50712a4c1eecf25e90dd62b613502b7e925fd4e4d19b5c96512"
 
+[[package]]
+name = "unicode-xid"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853"
+
 [[package]]
 name = "value-bag"
 version = "1.11.1"
diff --git a/Cargo.toml b/Cargo.toml
index d9dfe0f..03f3d99 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,11 +1,12 @@
 [package]
 name = "icarus_envy"
-version = "0.2.1"
+version = "0.2.2"
 edition = "2024"
 rust-version = "1.86"
 
 [dependencies]
 dotenvy = { version = "0.15.7" }
+const_format = { version = "0.2.34" }
 
 [dev-dependencies]
 async-std = { version = "1.13.1" }
diff --git a/src/keys.rs b/src/keys.rs
index 5f77cab..cde5fab 100644
--- a/src/keys.rs
+++ b/src/keys.rs
@@ -16,9 +16,12 @@ pub const ROOT_DIRECTORY: &str = "ROOT_DIRECTORY";
 pub const ICARUS_BASE_API_URL: &str = "ICARUS_BASE_API_URL";
 
 pub mod error {
-    pub const DB_URL: &str = "DATABASE_URL must be set in .env";
-    pub const SECRET_KEY: &str = "SECRET_KEY must be set in environment file";
-    pub const SECRET_MAIN_KEY: &str = "SECRET_MAIN_KEY must not be set in environment file";
-    pub const ROOT_DIRECTORY: &str = "ROOT_DIRECTORY must not be set in environment file";
-    pub const ICARUS_BASE_API_URL: &str = "ICARUS_BASE_API_URL must not be set in enviornment file";
+    use const_format::concatcp;
+
+    pub const GENERAL_ERROR: &str = "must not be set in enviornment file";
+    pub const DB_URL: &str = concatcp!(super::DB_URL, " ", GENERAL_ERROR);
+    pub const SECRET_KEY: &str = concatcp!(super::SECRET_KEY, " ", GENERAL_ERROR);
+    pub const SECRET_MAIN_KEY: &str = concatcp!(super::SECRET_MAIN_KEY, " ", GENERAL_ERROR);
+    pub const ROOT_DIRECTORY: &str = concatcp!(super::ROOT_DIRECTORY, " ", GENERAL_ERROR);
+    pub const ICARUS_BASE_API_URL: &str = concatcp!(super::ICARUS_BASE_API_URL, " ", GENERAL_ERROR);
 }