diff --git a/src/client/response/header/meta.rs b/src/client/response/header/meta.rs
index 17bf70e..b7af3e2 100644
--- a/src/client/response/header/meta.rs
+++ b/src/client/response/header/meta.rs
@@ -16,14 +16,14 @@ impl Meta {
             Some(value) => Ok(Self {
                 buffer: value.to_vec(),
             }),
-            None => return Err(Error::Undefined),
+            None => return Err(Error::Protocol),
         }
     }
 
     pub fn to_gstring(&self) -> Result<GString, Error> {
         match GString::from_utf8(self.buffer.clone()) {
             Ok(result) => Ok(result),
-            Err(_) => Err(Error::Undefined),
+            Err(_) => Err(Error::Decode),
         }
     }
 
diff --git a/src/client/response/header/meta/error.rs b/src/client/response/header/meta/error.rs
index d9b19fd..989e734 100644
--- a/src/client/response/header/meta/error.rs
+++ b/src/client/response/header/meta/error.rs
@@ -1,5 +1,6 @@
 #[derive(Debug)]
 pub enum Error {
     Decode,
+    Protocol,
     Undefined,
 }
diff --git a/src/client/response/header/status.rs b/src/client/response/header/status.rs
index 6097171..e24cbca 100644
--- a/src/client/response/header/status.rs
+++ b/src/client/response/header/status.rs
@@ -23,7 +23,7 @@ impl Status {
                 Ok(string) => Self::from_string(string.as_str()),
                 Err(_) => Err(Error::Decode),
             },
-            None => Err(Error::Undefined),
+            None => Err(Error::Protocol),
         }
     }
 
diff --git a/src/client/response/header/status/error.rs b/src/client/response/header/status/error.rs
index d9b19fd..989e734 100644
--- a/src/client/response/header/status/error.rs
+++ b/src/client/response/header/status/error.rs
@@ -1,5 +1,6 @@
 #[derive(Debug)]
 pub enum Error {
     Decode,
+    Protocol,
     Undefined,
 }