diff --git a/backend/windmill-api/src/job_helpers_oss.rs b/backend/windmill-api/src/job_helpers_oss.rs
index 7a4fb7643a..f02ffbf29c 100644
--- a/backend/windmill-api/src/job_helpers_oss.rs
+++ b/backend/windmill-api/src/job_helpers_oss.rs
@@ -139,7 +139,7 @@ pub async fn download_s3_file_internal(
 pub async fn read_object_streamable(
     s3_client: Arc<dyn ObjectStore>,
     file_key: &str,
-) -> anyhow::Result<Response> {
+) -> error::Result<Response> {
     Err(error::Error::internal_err(
         "Not implemented in Windmill's Open Source repository".to_string(),
     ))
diff --git a/backend/windmill-common/src/error.rs b/backend/windmill-common/src/error.rs
index 6418968d28..e5c95b7d82 100644
--- a/backend/windmill-common/src/error.rs
+++ b/backend/windmill-common/src/error.rs
@@ -286,3 +286,42 @@ where
         Self(err.into())
     }
 }
+
+impl From<object_store::Error> for Error {
+    fn from(err: object_store::Error) -> Self {
+        use object_store::Error::*;
+        match err {
+            Generic { store, source } => Error::Generic(
+                StatusCode::INTERNAL_SERVER_ERROR,
+                format!("Generic {} error: {}", store, source),
+            ),
+            NotFound { path, source } => Error::NotFound(format!("{}: {}", path, source)),
+            InvalidPath { source } => Error::BadRequest(format!("Invalid path: {}", source)),
+            JoinError { source } => Error::InternalErr(format!("Join error: {}", source)),
+            NotSupported { source } => {
+                Error::BadRequest(format!("Operation not supported: {}", source))
+            }
+            AlreadyExists { path, source } => {
+                Error::BadRequest(format!("Object at {} already exists: {}", path, source))
+            }
+            Precondition { path, source } => {
+                Error::BadRequest(format!("Precondition failed at {}: {}", path, source))
+            }
+            NotModified { path, source } => {
+                Error::ExecutionErr(format!("Not modified at {}: {}", path, source))
+            }
+            NotImplemented => Error::BadRequest("Operation not yet implemented.".to_string()),
+            PermissionDenied { path, source } => {
+                Error::PermissionDenied(format!("Permission denied at {}: {}", path, source))
+            }
+            Unauthenticated { path, source } => {
+                Error::NotAuthorized(format!("Unauthenticated for {}: {}", path, source))
+            }
+            UnknownConfigurationKey { store, key } => Error::BadConfig(format!(
+                "Invalid config key '{}' for store '{}'",
+                key, store
+            )),
+            _ => Error::InternalErr(format!("Object store error: {}", err)),
+        }
+    }
+}