diff --git a/src/ffi.rs b/src/ffi.rs
index abca415..64179cd 100644
--- a/src/ffi.rs
+++ b/src/ffi.rs
@@ -15,6 +15,8 @@ pub fn to_mut_cstr(s: &str) -> *mut c_char {
 
     let mut c_chars: Vec<c_char> = bytes.iter().map(|b| *b as c_char).collect();
 
+    std::mem::forget(bytes);
+
     c_chars.as_mut_ptr()
 }
 
diff --git a/src/lib.rs b/src/lib.rs
index 970be08..ee81148 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -26,6 +26,12 @@ impl std::fmt::Display for Error {
     }
 }
 
+impl std::error::Error for Error {
+    fn description(&self) -> &str {
+        "LXC error"
+    }
+}
+
 pub type Result<T> = std::result::Result<T, Error>;
 
 /**