diff --git a/exercises/practice/largest-series-product/.meta/proof.ci.ts b/exercises/practice/largest-series-product/.meta/proof.ci.ts
index b9b0ad75f..eb5624878 100644
--- a/exercises/practice/largest-series-product/.meta/proof.ci.ts
+++ b/exercises/practice/largest-series-product/.meta/proof.ci.ts
@@ -3,7 +3,7 @@ export function largestProduct(digits: string, seriesLength: number): number {
     return 1
   }
   if (seriesLength > digits.length) {
-    throw new Error('Span must be smaller than string length')
+    throw new Error('Span must not exceed string length')
   }
   if (seriesLength < 0) {
     throw new Error('Span must not be negative')
diff --git a/exercises/practice/largest-series-product/.meta/tests.toml b/exercises/practice/largest-series-product/.meta/tests.toml
index 883169259..982f517cc 100644
--- a/exercises/practice/largest-series-product/.meta/tests.toml
+++ b/exercises/practice/largest-series-product/.meta/tests.toml
@@ -38,6 +38,11 @@ description = "reports zero if all spans include zero"
 
 [5d81aaf7-4f67-4125-bf33-11493cc7eab7]
 description = "rejects span longer than string length"
+include = false
+
+[0ae1ce53-d9ba-41bb-827f-2fceb64f058b]
+description = "rejects span longer than string length"
+reimplements = "5d81aaf7-4f67-4125-bf33-11493cc7eab7"
 
 [06bc8b90-0c51-4c54-ac22-3ec3893a079e]
 description = "reports 1 for empty string and empty product (0 span)"
@@ -49,6 +54,11 @@ include = false
 
 [6d96c691-4374-4404-80ee-2ea8f3613dd4]
 description = "rejects empty string and nonzero span"
+include = false
+
+[6cf66098-a6af-4223-aab1-26aeeefc7402]
+description = "rejects empty string and nonzero span"
+reimplements = "6d96c691-4374-4404-80ee-2ea8f3613dd4"
 
 [7a38f2d6-3c35-45f6-8d6f-12e6e32d4d74]
 description = "rejects invalid character in digits"
diff --git a/exercises/practice/largest-series-product/largest-series-product.test.ts b/exercises/practice/largest-series-product/largest-series-product.test.ts
index 682886e73..1f129c263 100644
--- a/exercises/practice/largest-series-product/largest-series-product.test.ts
+++ b/exercises/practice/largest-series-product/largest-series-product.test.ts
@@ -42,13 +42,13 @@ describe('Largest Series Product', () => {
 
   xit('rejects span longer than string length', () => {
     expect(() => largestProduct('123', 4)).toThrow(
-      new Error('Span must be smaller than string length')
+      new Error('Span must not exceed string length')
     )
   })
 
   xit('rejects empty string and nonzero span', () => {
     expect(() => largestProduct('', 1)).toThrow(
-      new Error('Span must be smaller than string length')
+      new Error('Span must not exceed string length')
     )
   })