diff --git a/src/publish.rs b/src/publish.rs
index cb976b4..34b2b8a 100644
--- a/src/publish.rs
+++ b/src/publish.rs
@@ -6,6 +6,9 @@ use elefren::{
     status_builder::Visibility,
     Language, Mastodon, MastodonClient, Registration, StatusBuilder,
 };
+
+const FEDIVERSE_TOML_PATH: &str = "fediverse.toml";
+
 pub trait Publisher {
     fn publish(&self, content: String) -> Option<Box<dyn Error>>;
 }
@@ -16,7 +19,7 @@ pub struct FediversePublisher {
 
 impl FediversePublisher {
     pub fn new(fedi_url: String) -> Result<FediversePublisher, Box<dyn Error>> {
-        let fedi = if let Ok(data) = toml::from_file("fediverse.toml") {
+        let fedi = if let Ok(data) = toml::from_file(FEDIVERSE_TOML_PATH.to_string()) {
             Mastodon::from(data)
         } else {
             register(fedi_url)?
@@ -56,7 +59,7 @@ fn register(fedi_url: String) -> Result<Mastodon, Box<dyn Error>> {
     let fediverse = cli::authenticate(registration)?;
 
     // Save app data for using on the next run.
-    toml::to_file(&*fediverse, "fediverse.toml")?;
+    toml::to_file(&*fediverse, FEDIVERSE_TOML_PATH.to_string())?;
 
     Ok(fediverse)
 }