diff --git a/src/libbpf.c b/src/libbpf.c
index 1cbacf9..ad1ec89 100644
--- a/src/libbpf.c
+++ b/src/libbpf.c
@@ -1361,7 +1361,7 @@ static int bpf_object__elf_init(struct bpf_object *obj)
 		goto errout;
 	}
 
-	/* Elf is corrupted/truncated, avoid calling elf_strptr. */
+	/* ELF is corrupted/truncated, avoid calling elf_strptr. */
 	if (!elf_rawdata(elf_getscn(elf, obj->efile.shstrndx), NULL)) {
 		pr_warn("elf: failed to get section names strings from %s: %s\n",
 			obj->path, elf_errmsg(-1));
diff --git a/src/usdt.c b/src/usdt.c
index b8402e3..086eef3 100644
--- a/src/usdt.c
+++ b/src/usdt.c
@@ -771,7 +771,7 @@ static int collect_usdt_targets(struct usdt_manager *man, Elf *elf, const char *
 		target->rel_ip = usdt_rel_ip;
 		target->sema_off = usdt_sema_off;
 
-		/* notes.args references strings from Elf itself, so they can
+		/* notes.args references strings from ELF itself, so they can
 		 * be referenced safely until elf_end() call
 		 */
 		target->spec_str = note.args;