diff --git a/Cargo.lock b/Cargo.lock
index 1dc6cba9a7..f14ede782c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2660,7 +2660,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "seattle_traffic_signals"
 version = "0.1.0"
-source = "git+https://github.com/dabreegster/seattle_traffic_signals#75a8500a59bbaf74fb0aa08a7cad6a075472f1e9"
+source = "git+https://github.com/dabreegster/seattle_traffic_signals#e3afd88651ef379cb1dd094ab4b927a0b3083513"
 dependencies = [
  "include_dir 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/game/src/render/turn.rs b/game/src/render/turn.rs
index 138c8cd122..3d681cda33 100644
--- a/game/src/render/turn.rs
+++ b/game/src/render/turn.rs
@@ -66,10 +66,14 @@ impl DrawTurnGroup {
                 .max()
                 .unwrap() as f64;
             let (pl, width) = group.src_center_and_width(map);
-            let slice = pl.exact_slice(
-                offset * TURN_ICON_ARROW_LENGTH,
-                (offset + 1.0) * TURN_ICON_ARROW_LENGTH,
-            );
+            let slice = if pl.length() >= (offset + 1.0) * TURN_ICON_ARROW_LENGTH {
+                pl.exact_slice(
+                    offset * TURN_ICON_ARROW_LENGTH,
+                    (offset + 1.0) * TURN_ICON_ARROW_LENGTH,
+                )
+            } else {
+                pl
+            };
             let block = slice.make_polygons(width);
 
             let arrow = {