diff --git a/helix-term/src/application.rs b/helix-term/src/application.rs
index 91bc0881fc8b2..9fd59506e2b34 100644
--- a/helix-term/src/application.rs
+++ b/helix-term/src/application.rs
@@ -746,6 +746,15 @@ impl Application {
                                 return;
                             }
                         };
+                        let path = match path.canonicalize() {
+                            Ok(path) => path,
+                            Err(err) => {
+                                log::error!(
+                                    "Could not canonicalize diagnostic path {path:?}: {err}"
+                                );
+                                return;
+                            }
+                        };
                         let offset_encoding = language_server!().offset_encoding();
                         let doc = self.editor.document_by_path_mut(&path).filter(|doc| {
                             if let Some(version) = params.version {