diff --git a/wakey/src/lib.rs b/wakey/src/lib.rs
index c289ba6..515ae4c 100644
--- a/wakey/src/lib.rs
+++ b/wakey/src/lib.rs
@@ -47,7 +47,7 @@ impl WolPacket {
     /// ```
     /// # Panic
     ///  Panics when input MAC is invalid (i.e. contains non-byte characters)
-    pub fn from_string(data: &str, sep: char) -> WolPacket {
+    pub fn from_string<T: AsRef<str>>(data: T, sep: char) -> WolPacket {
         WolPacket::from_bytes(&WolPacket::mac_to_byte(data, sep))
     }
 
@@ -91,8 +91,9 @@ impl WolPacket {
     /// Converts string representation of MAC address (e.x. 00:01:02:03:04:05) to raw bytes.
     /// # Panic
     /// Panics when input MAC is invalid (i.e. contains non-byte characters)
-    fn mac_to_byte(data: &str, sep: char) -> ArrayVec<u8, MAC_SIZE> {
+    fn mac_to_byte<T: AsRef<str>>(data: T, sep: char) -> ArrayVec<u8, MAC_SIZE> {
         let bytes = data
+            .as_ref()
             .split(sep)
             .flat_map(|x| hex::decode(x).expect("Invalid mac!"))
             .collect::<ArrayVec<u8, MAC_SIZE>>();