diff --git a/src/io/mod.rs b/src/io/mod.rs
index 1e8b154f..868c0218 100644
--- a/src/io/mod.rs
+++ b/src/io/mod.rs
@@ -13,6 +13,14 @@ pub struct HttpFetcherConfig {
     pub cache_path: String,
 }
 
+impl Default for HttpFetcherConfig {
+    fn default() -> Self {
+        Self {
+            cache_path: ".".to_string(),
+        }
+    }
+}
+
 #[cfg_attr(target_arch = "wasm32", async_trait(?Send))]
 #[cfg_attr(not(target_arch = "wasm32"), async_trait)]
 pub trait HttpFetcher {
diff --git a/src/io/static_tile_fetcher.rs b/src/io/static_tile_fetcher.rs
index d7803e9d..a15b42d9 100644
--- a/src/io/static_tile_fetcher.rs
+++ b/src/io/static_tile_fetcher.rs
@@ -49,13 +49,13 @@ impl TileFetcher for StaticTileFetcher {
 
 #[cfg(test)]
 mod tests {
-    use crate::io::TileFetcher;
+    use crate::io::{HttpFetcherConfig, TileFetcher};
 
     use super::StaticTileFetcher;
 
     #[tokio::test]
     async fn test_tiles_available() {
-        let fetcher = StaticTileFetcher::new();
+        let fetcher = StaticTileFetcher::new(HttpFetcherConfig::default());
         assert!(fetcher.fetch_tile(&(0, 0, 0).into()).await.is_err()); // World overview
         assert!(fetcher
             .fetch_tile(
diff --git a/src/io/web_tile_fetcher.rs b/src/io/web_tile_fetcher.rs
index c39ee02b..61c7a292 100644
--- a/src/io/web_tile_fetcher.rs
+++ b/src/io/web_tile_fetcher.rs
@@ -39,11 +39,11 @@ impl TileFetcher for WebTileFetcher {
 #[cfg(test)]
 mod tests {
     use super::WebTileFetcher;
-    use crate::io::TileFetcher;
+    use crate::io::{HttpFetcherConfig, TileFetcher};
 
     #[tokio::test]
     async fn test_tiles_available() {
-        let fetcher = WebTileFetcher::new();
+        let fetcher = WebTileFetcher::new(HttpFetcherConfig::default());
         assert!(fetcher.fetch_tile(&(0, 0, 0).into()).await.is_ok()); // World overview
     }
 }