diff --git a/src/bpf.c b/src/bpf.c
index 3c7c180..f69ce3a 100644
--- a/src/bpf.c
+++ b/src/bpf.c
@@ -995,6 +995,7 @@ int bpf_prog_test_run_opts(int prog_fd, struct bpf_test_run_opts *opts)
 
 	memset(&attr, 0, sizeof(attr));
 	attr.test.prog_fd = prog_fd;
+	attr.test.batch_size = OPTS_GET(opts, batch_size, 0);
 	attr.test.cpu = OPTS_GET(opts, cpu, 0);
 	attr.test.flags = OPTS_GET(opts, flags, 0);
 	attr.test.repeat = OPTS_GET(opts, repeat, 0);
diff --git a/src/bpf.h b/src/bpf.h
index 16b2175..5253cb4 100644
--- a/src/bpf.h
+++ b/src/bpf.h
@@ -512,8 +512,9 @@ struct bpf_test_run_opts {
 	__u32 duration;      /* out: average per repetition in ns */
 	__u32 flags;
 	__u32 cpu;
+	__u32 batch_size;
 };
-#define bpf_test_run_opts__last_field cpu
+#define bpf_test_run_opts__last_field batch_size
 
 LIBBPF_API int bpf_prog_test_run_opts(int prog_fd,
 				      struct bpf_test_run_opts *opts);