diff --git a/src/libbpf.c b/src/libbpf.c
index 49a52b0..95f92be 100644
--- a/src/libbpf.c
+++ b/src/libbpf.c
@@ -5405,7 +5405,7 @@ static int bpf_core_apply_relo(struct bpf_program *prog,
 	 * relocated, so it's enough to just subtract in-section offset
 	 */
 	insn_idx = insn_idx - prog->sec_insn_off;
-	if (insn_idx > prog->insns_cnt)
+	if (insn_idx >= prog->insns_cnt)
 		return -EINVAL;
 	insn = &prog->insns[insn_idx];