diff --git a/crates/project/src/project.rs b/crates/project/src/project.rs
index dfb5e9bc80..8ce07a6abd 100644
--- a/crates/project/src/project.rs
+++ b/crates/project/src/project.rs
@@ -2644,9 +2644,6 @@ impl Project {
         let (worktree, relative_path) = self
             .find_local_worktree(&abs_path, cx)
             .ok_or_else(|| anyhow!("no worktree found for diagnostics"))?;
-        if !worktree.read(cx).is_visible() {
-            return Ok(());
-        }
 
         let project_path = ProjectPath {
             worktree_id: worktree.read(cx).id(),
@@ -4011,13 +4008,15 @@ impl Project {
         abs_path: &Path,
         cx: &AppContext,
     ) -> Option<(ModelHandle<Worktree>, PathBuf)> {
-        for tree in self.worktrees(cx) {
-            if let Some(relative_path) = tree
-                .read(cx)
-                .as_local()
-                .and_then(|t| abs_path.strip_prefix(t.abs_path()).ok())
-            {
-                return Some((tree.clone(), relative_path.into()));
+        for tree in &self.worktrees {
+            if let Some(tree) = tree.upgrade(cx) {
+                if let Some(relative_path) = tree
+                    .read(cx)
+                    .as_local()
+                    .and_then(|t| abs_path.strip_prefix(t.abs_path()).ok())
+                {
+                    return Some((tree.clone(), relative_path.into()));
+                }
             }
         }
         None
@@ -4258,7 +4257,7 @@ impl Project {
         &'a self,
         cx: &'a AppContext,
     ) -> impl Iterator<Item = (ProjectPath, DiagnosticSummary)> + 'a {
-        self.worktrees(cx).flat_map(move |worktree| {
+        self.visible_worktrees(cx).flat_map(move |worktree| {
             let worktree = worktree.read(cx);
             let worktree_id = worktree.id();
             worktree
@@ -6411,6 +6410,80 @@ mod tests {
         });
     }
 
+    #[gpui::test]
+    async fn test_hidden_worktrees_diagnostics(cx: &mut gpui::TestAppContext) {
+        cx.foreground().forbid_parking();
+
+        let fs = FakeFs::new(cx.background());
+        fs.insert_tree(
+            "/root",
+            json!({
+                "dir": {
+                    "a.rs": "let a = 1;",
+                },
+                "other.rs": "let b = c;"
+            }),
+        )
+        .await;
+
+        let project = Project::test(fs, ["/root/dir".as_ref()], cx).await;
+
+        let (worktree, _) = project
+            .update(cx, |project, cx| {
+                project.find_or_create_local_worktree("/root/other.rs", false, cx)
+            })
+            .await
+            .unwrap();
+        let worktree_id = worktree.read_with(cx, |tree, _| tree.id());
+
+        project.update(cx, |project, cx| {
+            project
+                .update_diagnostics(
+                    0,
+                    lsp::PublishDiagnosticsParams {
+                        uri: Url::from_file_path("/root/other.rs").unwrap(),
+                        version: None,
+                        diagnostics: vec![lsp::Diagnostic {
+                            range: lsp::Range::new(
+                                lsp::Position::new(0, 8),
+                                lsp::Position::new(0, 9),
+                            ),
+                            severity: Some(lsp::DiagnosticSeverity::ERROR),
+                            message: "unknown variable 'c'".to_string(),
+                            ..Default::default()
+                        }],
+                    },
+                    &[],
+                    cx,
+                )
+                .unwrap();
+        });
+
+        let buffer = project
+            .update(cx, |project, cx| project.open_buffer((worktree_id, ""), cx))
+            .await
+            .unwrap();
+        buffer.read_with(cx, |buffer, _| {
+            let chunks = chunks_with_diagnostics(&buffer, 0..buffer.len());
+            assert_eq!(
+                chunks
+                    .iter()
+                    .map(|(s, d)| (s.as_str(), *d))
+                    .collect::<Vec<_>>(),
+                &[
+                    ("let b = ", None),
+                    ("c", Some(DiagnosticSeverity::ERROR)),
+                    (";", None),
+                ]
+            );
+        });
+
+        project.read_with(cx, |project, cx| {
+            assert_eq!(project.diagnostic_summaries(cx).next(), None);
+            assert_eq!(project.diagnostic_summary(cx).error_count, 0);
+        });
+    }
+
     #[gpui::test]
     async fn test_disk_based_diagnostics_progress(cx: &mut gpui::TestAppContext) {
         cx.foreground().forbid_parking();
diff --git a/crates/workspace/src/workspace.rs b/crates/workspace/src/workspace.rs
index 942e9a091a..b0e4373ca4 100644
--- a/crates/workspace/src/workspace.rs
+++ b/crates/workspace/src/workspace.rs
@@ -995,9 +995,9 @@ impl Workspace {
         // Sort the paths to ensure we add worktrees for parents before their children.
         abs_paths.sort_unstable();
         cx.spawn(|this, mut cx| async move {
-            let mut entries = Vec::new();
+            let mut project_paths = Vec::new();
             for path in &abs_paths {
-                entries.push(
+                project_paths.push(
                     this.update(&mut cx, |this, cx| {
                         this.project_path_for_path(path, visible, cx)
                     })
@@ -1009,7 +1009,7 @@ impl Workspace {
             let tasks = abs_paths
                 .iter()
                 .cloned()
-                .zip(entries.into_iter())
+                .zip(project_paths.into_iter())
                 .map(|(abs_path, project_path)| {
                     let this = this.clone();
                     cx.spawn(|mut cx| {