diff --git a/Cargo.lock b/Cargo.lock
index d2e8be5..0bf8036 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1314,6 +1314,7 @@ dependencies = [
 name = "magic-nix-cache"
 version = "0.1.1"
 dependencies = [
+ "anyhow",
  "attic",
  "attic-client",
  "axum",
diff --git a/magic-nix-cache/Cargo.toml b/magic-nix-cache/Cargo.toml
index 14c30ae..3a12137 100644
--- a/magic-nix-cache/Cargo.toml
+++ b/magic-nix-cache/Cargo.toml
@@ -29,6 +29,7 @@ attic = { git = "ssh://git@github.com/DeterminateSystems/attic-priv", branch = "
 attic-client = { git = "ssh://git@github.com/DeterminateSystems/attic-priv", branch = "main" }
 #attic-client = { path = "../../attic-priv/client" }
 indicatif = "0.17"
+anyhow = "1.0.71"
 
 [dependencies.tokio]
 version = "1.28.0"
diff --git a/magic-nix-cache/src/api.rs b/magic-nix-cache/src/api.rs
index ff04c87..e0a2b72 100644
--- a/magic-nix-cache/src/api.rs
+++ b/magic-nix-cache/src/api.rs
@@ -119,9 +119,7 @@ async fn enqueue_paths(
         .collect();
 
     if let Some(flakehub_state) = &*state.flakehub_state.read().await {
-        crate::flakehub::enqueue_paths(flakehub_state, store_paths)
-            .await
-            .unwrap();
+        crate::flakehub::enqueue_paths(flakehub_state, store_paths).await?;
     }
 
     Ok(Json(EnqueuePathsResponse {}))
diff --git a/magic-nix-cache/src/error.rs b/magic-nix-cache/src/error.rs
index 574b9d9..686cfdd 100644
--- a/magic-nix-cache/src/error.rs
+++ b/magic-nix-cache/src/error.rs
@@ -27,6 +27,9 @@ pub enum Error {
 
     #[error("GHA cache is disabled")]
     GHADisabled,
+
+    #[error("FlakeHub cache error: {0}")]
+    FlakeHub(anyhow::Error),
 }
 
 impl IntoResponse for Error {
diff --git a/magic-nix-cache/src/flakehub.rs b/magic-nix-cache/src/flakehub.rs
index 958f639..104b6a1 100644
--- a/magic-nix-cache/src/flakehub.rs
+++ b/magic-nix-cache/src/flakehub.rs
@@ -1,4 +1,4 @@
-use crate::error::Result;
+use crate::error::{Error, Result};
 use attic::api::v1::cache_config::{CreateCacheRequest, KeypairConfig};
 use attic::cache::CacheSliceIdentifier;
 use attic::nix_store::{NixStore, StorePath};
@@ -20,8 +20,6 @@ const JWT_PREFIX: &str = "flakehub1_";
 const USER_AGENT: &str = "magic-nix-cache";
 
 pub struct State {
-    cache: CacheSliceIdentifier,
-
     pub substituter: String,
 
     pub push_session: PushSession,
@@ -250,14 +248,16 @@ pub async fn init_cache(
     });
 
     Ok(State {
-        cache,
         substituter: flakehub_cache_server.to_owned(),
         push_session,
     })
 }
 
 pub async fn enqueue_paths(state: &State, store_paths: Vec<StorePath>) -> Result<()> {
-    state.push_session.queue_many(store_paths).unwrap();
+    state
+        .push_session
+        .queue_many(store_paths)
+        .map_err(Error::FlakeHub)?;
 
     Ok(())
 }