diff --git a/compute_tools/src/bin/compute_ctl.rs b/compute_tools/src/bin/compute_ctl.rs
index b1aee345f3..46b0034763 100644
--- a/compute_tools/src/bin/compute_ctl.rs
+++ b/compute_tools/src/bin/compute_ctl.rs
@@ -197,7 +197,7 @@ fn main() -> Result<()> {
         state_changed: Condvar::new(),
         ext_remote_storage,
         ext_remote_paths: OnceLock::new(),
-        already_downloaded_extensions: Mutex::new(HashSet::new()),
+        started_to_download_extensions: Mutex::new(HashSet::new()),
         library_index: OnceLock::new(),
         build_tag,
     };
diff --git a/compute_tools/src/compute.rs b/compute_tools/src/compute.rs
index 7eb33486f1..c1a8f0d57d 100644
--- a/compute_tools/src/compute.rs
+++ b/compute_tools/src/compute.rs
@@ -59,7 +59,7 @@ pub struct ComputeNode {
     // (key: extension name, value: path to extension archive in remote storage)
     pub ext_remote_paths: OnceLock<HashMap<String, RemotePath>>,
     pub library_index: OnceLock<HashMap<String, String>>,
-    pub already_downloaded_extensions: Mutex<HashSet<String>>,
+    pub started_to_download_extensions: Mutex<HashSet<String>>,
     pub build_tag: String,
 }
 
@@ -778,16 +778,18 @@ LIMIT 100",
                 }
 
                 {
-                    let mut already_downloaded_extensions =
-                        self.already_downloaded_extensions.lock().expect("bad lock");
-                    if already_downloaded_extensions.contains(&real_ext_name) {
+                    let mut started_to_download_extensions = self
+                        .started_to_download_extensions
+                        .lock()
+                        .expect("bad lock");
+                    if started_to_download_extensions.contains(&real_ext_name) {
                         info!(
                             "extension {:?} already exists, skipping download",
                             &ext_name
                         );
                         return Ok(());
                     } else {
-                        already_downloaded_extensions.insert(real_ext_name.clone());
+                        started_to_download_extensions.insert(real_ext_name.clone());
                     }
                 }
                 extension_server::download_extension(
diff --git a/test_runner/regress/test_download_extensions.py b/test_runner/regress/test_download_extensions.py
index 898efd57d4..001ef00919 100644
--- a/test_runner/regress/test_download_extensions.py
+++ b/test_runner/regress/test_download_extensions.py
@@ -176,9 +176,18 @@ def test_remote_library(
                 log.info(f"error loading anon library: {err}")
                 raise AssertionError("unexpected error loading anon library") from err
 
-            # TODO test library which name is different from extension name
+            # test library which name is different from extension name
+            # this fails on my computer because I' missing a dependency
+            # however, it does successfully download the postgis archive
             if remote_storage_kind == RemoteStorageKind.REAL_S3:
-                cur.execute("LOAD 'postgis_topology-3'")
+                try:
+                    cur.execute("LOAD 'postgis_topology-3'")
+                except Exception as err:
+                    log.info("error loading postgis_topology-3")
+                    assert (
+                        "libproj.so.19: cannot open shared object file: No such file or directory"
+                        in str(err)
+                    ), "unexpected error loading postgis_topology-3"
 
     cleanup_files = add_pgdir_prefix(
         pg_version,