diff --git a/src/components/prs/prTimeDecayModel.ts b/src/components/prs/prTimeDecayModel.ts
index c245e5b7..82db56c4 100644
--- a/src/components/prs/prTimeDecayModel.ts
+++ b/src/components/prs/prTimeDecayModel.ts
@@ -194,5 +194,5 @@ export function buildDecaySubline(projection: DecayProjection): string {
   if (projection.daysSinceMerge > projection.lookbackDays) {
     return `Outside ${projection.lookbackDays}-day scoring window.`;
   }
-  return `${projection.daysSinceMerge.toFixed(1)} days since merge`;
+  return `${projection.daysSinceMerge.toFixed(1)} day(s) since merge`;
 }