diff --git a/src/tools.rs b/src/tools.rs
index a706d84c..81747e64 100644
--- a/src/tools.rs
+++ b/src/tools.rs
@@ -387,12 +387,9 @@ pub fn scandir<P, F>(
 
 pub fn get_hardware_address() -> Result<String, Error> {
 
-    static FILENAME: &str = "/etc/ssh/assh_host_rsa_key.pub";
-
-    let mut file = File::open(FILENAME)?;
-    let mut contents = Vec::new();
-    file.read_to_end(&mut contents)?;
+    static FILENAME: &str = "/etc/ssh/ssh_host_rsa_key.pub";
 
+    let contents = file_get_contents(FILENAME)?;
     let digest = md5::compute(contents);
 
     Ok(format!("{:0x}", digest))