diff --git a/src/libbpf.c b/src/libbpf.c
index 6c2f469..3da6654 100644
--- a/src/libbpf.c
+++ b/src/libbpf.c
@@ -8352,7 +8352,7 @@ error:
 struct perf_sample_raw {
 	struct perf_event_header header;
 	uint32_t size;
-	char data[0];
+	char data[];
 };
 
 struct perf_sample_lost {
diff --git a/src/libbpf_internal.h b/src/libbpf_internal.h
index 8c3afbd..50d70e9 100644
--- a/src/libbpf_internal.h
+++ b/src/libbpf_internal.h
@@ -153,7 +153,7 @@ struct btf_ext_info_sec {
 	__u32	sec_name_off;
 	__u32	num_info;
 	/* Followed by num_info * record_size number of bytes */
-	__u8	data[0];
+	__u8	data[];
 };
 
 /* The minimum bpf_func_info checked by the loader */