diff --git a/frontend/src/ts/test/test-input.ts b/frontend/src/ts/test/test-input.ts
index 0658bf80c..da24b197a 100644
--- a/frontend/src/ts/test/test-input.ts
+++ b/frontend/src/ts/test/test-input.ts
@@ -390,6 +390,7 @@ export function resetKeypressTimings(): void {
   };
   newKeypresDurationArray = [];
   totalOverlap = 0;
+  lastOverlapStartTime = -1;
   if (spacingDebug) console.clear();
 }