diff --git a/benchmarks/cpp/flatbuffers/bench_generated.h b/benchmarks/cpp/flatbuffers/bench_generated.h
index 9d207c5..8293759 100644
--- a/benchmarks/cpp/flatbuffers/bench_generated.h
+++ b/benchmarks/cpp/flatbuffers/bench_generated.h
@@ -6,6 +6,13 @@
 
 #include "flatbuffers/flatbuffers.h"
 
+// Ensure the included flatbuffers.h is the same version as when this file was
+// generated, otherwise it may not be compatible.
+static_assert(FLATBUFFERS_VERSION_MAJOR == 2 &&
+              FLATBUFFERS_VERSION_MINOR == 0 &&
+              FLATBUFFERS_VERSION_REVISION == 6,
+             "Non-compatible flatbuffers version included");
+
 namespace benchmarks_flatbuffers {
 
 struct Foo;
@@ -157,11 +164,11 @@
   }
   bool Verify(flatbuffers::Verifier &verifier) const {
     return VerifyTableStart(verifier) &&
-           VerifyField<benchmarks_flatbuffers::Bar>(verifier, VT_SIBLING) &&
+           VerifyField<benchmarks_flatbuffers::Bar>(verifier, VT_SIBLING, 8) &&
            VerifyOffset(verifier, VT_NAME) &&
            verifier.VerifyString(name()) &&
-           VerifyField<double>(verifier, VT_RATING) &&
-           VerifyField<uint8_t>(verifier, VT_POSTFIX) &&
+           VerifyField<double>(verifier, VT_RATING, 8) &&
+           VerifyField<uint8_t>(verifier, VT_POSTFIX, 1) &&
            verifier.EndTable();
   }
 };
@@ -247,8 +254,8 @@
            VerifyOffset(verifier, VT_LIST) &&
            verifier.VerifyVector(list()) &&
            verifier.VerifyVectorOfTables(list()) &&
-           VerifyField<uint8_t>(verifier, VT_INITIALIZED) &&
-           VerifyField<int16_t>(verifier, VT_FRUIT) &&
+           VerifyField<uint8_t>(verifier, VT_INITIALIZED, 1) &&
+           VerifyField<int16_t>(verifier, VT_FRUIT, 2) &&
            VerifyOffset(verifier, VT_LOCATION) &&
            verifier.VerifyString(location()) &&
            verifier.EndTable();
diff --git a/benchmarks/cpp/flatbuffers/fb_bench.cpp b/benchmarks/cpp/flatbuffers/fb_bench.cpp
index 2bbb9a5..9351667 100644
--- a/benchmarks/cpp/flatbuffers/fb_bench.cpp
+++ b/benchmarks/cpp/flatbuffers/fb_bench.cpp
@@ -16,7 +16,7 @@
   explicit FlatBufferBench(int64_t initial_size, Allocator *allocator)
       : fbb(initial_size, allocator, false) {}
 
-  uint8_t *Encode(void *, int64_t &len) {
+  uint8_t *Encode(void *, int64_t &len) override {
     fbb.Clear();
 
     const int kVectorLength = 3;
@@ -40,7 +40,7 @@
     return fbb.GetBufferPointer();
   }
 
-  int64_t Use(void *decoded) {
+  int64_t Use(void *decoded) override {
     sum = 0;
     auto foobarcontainer = GetFooBarContainer(decoded);
     sum = 0;
@@ -65,8 +65,8 @@
     return sum;
   }
 
-  void *Decode(void *buffer, int64_t) { return buffer; }
-  void Dealloc(void *) override{};
+  void *Decode(void *buffer, int64_t) override { return buffer; }
+  void Dealloc(void *) override {};
 
   FlatBufferBuilder fbb;
 };