diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
index ca0d635b1d5ea416a9c4b6c516895d94c279df5f..b3e3e99a0f280bc87ebbbaf62d5f0b0141bcb03f 100644
--- a/tools/lib/bpf/bpf.c
+++ b/tools/lib/bpf/bpf.c
@@ -189,7 +189,7 @@ static void *
 alloc_zero_tailing_info(const void *orecord, __u32 cnt,
 			__u32 actual_rec_size, __u32 expected_rec_size)
 {
-	__u64 info_len = actual_rec_size * cnt;
+	__u64 info_len = (__u64)actual_rec_size * cnt;
 	void *info, *nrecord;
 	int i;