diff --git a/backend/src/graphql/resolver/ContributionResolver.test.ts b/backend/src/graphql/resolver/ContributionResolver.test.ts
index 498fbaeba..b56180c45 100644
--- a/backend/src/graphql/resolver/ContributionResolver.test.ts
+++ b/backend/src/graphql/resolver/ContributionResolver.test.ts
@@ -526,7 +526,7 @@ describe('ContributionResolver', () => {
           })
           expect(errorObjects).toEqual([
             new GraphQLError(
-              'The amount to be created exceeds the amount still available for this month',,
+              'The amount to be created exceeds the amount still available for this month',
             ),
           ])
         })