diff --git a/svelte-app/src/lib/canvas/renderer.ts b/svelte-app/src/lib/canvas/renderer.ts
index 301494e..5cf31f3 100644
--- a/svelte-app/src/lib/canvas/renderer.ts
+++ b/svelte-app/src/lib/canvas/renderer.ts
@@ -561,7 +561,7 @@ function drawConveyanceLabel(ctx: CanvasRenderingContext2D, sym: PlacedSymbol) {
     const safeW = Math.min(w2, sym.w);
     cx = sym.x + safeW / 2;
     cy = sym.y + sym.h / 2;
-    availW = safeW;
+    availW = Infinity; // never shrink font for spurs — enough visual room
     availH = sym.h;
   } else {
     cx = sym.x + sym.w / 2;