1 files changed, 4 insertions, 1 deletions
diff --git a/src/test/fuzz/validation_load_mempool.cpp b/src/test/fuzz/validation_load_mempool.cpp
index bfbede5094..5d020b4d59 100644
--- a/src/test/fuzz/validation_load_mempool.cpp
+++ b/src/test/fuzz/validation_load_mempool.cpp
@@ -48,7 +48,10 @@ FUZZ_TARGET(validation_load_mempool, .init = initialize_validation_load_mempool)
     auto fuzzed_fopen = [&](const fs::path&, const char*) {
         return fuzzed_file_provider.open();
     };
-    (void)LoadMempool(pool, MempoolPath(g_setup->m_args), chainstate, fuzzed_fopen);
+    (void)LoadMempool(pool, MempoolPath(g_setup->m_args), chainstate,
+                      {
+                          .mockable_fopen_function = fuzzed_fopen,
+                      });
     pool.SetLoadTried(true);
     (void)DumpMempool(pool, MempoolPath(g_setup->m_args), fuzzed_fopen, true);
 }