diff --git a/tools/target_dec_fuzzer.c b/tools/target_dec_fuzzer.c
index 60a1cdd027..a06cf15638 100644
--- a/tools/target_dec_fuzzer.c
+++ b/tools/target_dec_fuzzer.c
@@ -246,6 +246,8 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
         }
         if ((flags & 0x10) && c->id != AV_CODEC_ID_H264)
             ctx->flags2 |= AV_CODEC_FLAG2_FAST;
+        if (flags & 0x80)
+            ctx->flags2 |= AV_CODEC_FLAG2_EXPORT_MVS;
 
         if (flags & 0x40)
             av_force_cpu_flags(0);