diff --git a/packages/app/src/assistant-file-links/parse.ts b/packages/app/src/assistant-file-links/parse.ts
index bd0015f0b..092f3b4dc 100644
--- a/packages/app/src/assistant-file-links/parse.ts
+++ b/packages/app/src/assistant-file-links/parse.ts
@@ -140,6 +140,7 @@ function parseLineFragment(value: string): Pick<InlinePathTarget, "lineStart" |
  *
  * Supported:
  * - `filename:linenumber`
+ * - `filename:linenumber:columnnumber` as a line target
  * - `filename:lineStart-lineEnd`
  *
  * Not supported (by design):