diff --git a/helix-view/src/gutter.rs b/helix-view/src/gutter.rs
index 36f719f79..bf04244df 100644
--- a/helix-view/src/gutter.rs
+++ b/helix-view/src/gutter.rs
@@ -287,7 +287,7 @@ fn execution_pause_indicator<'doc>(
 ) -> GutterFn<'doc> {
     let style = theme.get("ui.debug.active");
     let current_stack_frame = editor.current_stack_frame();
-    let frame_line = current_stack_frame.map(|frame| frame.line - 1);
+    let frame_line = current_stack_frame.and_then(|frame| frame.line.checked_sub(1));
     let frame_source_path = current_stack_frame.map(|frame| {
         frame
             .source