diff --git a/assets/js/maidenhead_grid.ts b/assets/js/maidenhead_grid.ts
index 49ee23cc..fae3a13a 100644
--- a/assets/js/maidenhead_grid.ts
+++ b/assets/js/maidenhead_grid.ts
@@ -87,8 +87,8 @@ function drawGridSquare(
   const px = Math.abs(ne.x - sw.x)
   const minW = sub ? 25 : field ? 30 : 40
   if (px > minW) {
-    // Subsquares show just the last 2 chars (e.g. "kp"), others show full label
-    const text = sub ? grid.substring(4, 6) : grid.substring(0, field ? 2 : 4)
+    // Show the full grid label at every level (e.g. "EM13sf" for a subsquare)
+    const text = field ? grid.substring(0, 2) : sub ? grid.substring(0, 6) : grid.substring(0, 4)
     const len = text.length
     const fs = Math.max(9, Math.min(sub ? 12 : 14, Math.round(px / (len * 1.2))))
     layerGroup.addLayer(L.marker([c.center.lat, c.center.lon], {