diff --git a/builtin/blame.c b/builtin/blame.c
index fc15863..4dd4c3f 100644
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -1589,7 +1589,7 @@
 	strcpy(hex, sha1_to_hex(suspect->commit->object.sha1));
 	printf("%s%c%d %d %d\n",
 	       hex,
-	       ent->guilty ? ' ' : '*', // purely for debugging
+	       ent->guilty ? ' ' : '*', /* purely for debugging */
 	       ent->s_lno + 1,
 	       ent->lno + 1,
 	       ent->num_lines);
diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c
index 62be1bb..7f5011f 100644
--- a/builtin/for-each-ref.c
+++ b/builtin/for-each-ref.c
@@ -549,10 +549,10 @@
 		grab_person("committer", val, deref, obj, buf, sz);
 		break;
 	case OBJ_TREE:
-		// grab_tree_values(val, deref, obj, buf, sz);
+		/* grab_tree_values(val, deref, obj, buf, sz); */
 		break;
 	case OBJ_BLOB:
-		// grab_blob_values(val, deref, obj, buf, sz);
+		/* grab_blob_values(val, deref, obj, buf, sz); */
 		break;
 	default:
 		die("Eh?  Object of type %d?", obj->type);
diff --git a/remote.c b/remote.c
index c70181c..26ce560 100644
--- a/remote.c
+++ b/remote.c
@@ -476,7 +476,7 @@
 	unsigned char sha1[20];
 	const char *head_ref;
 	int flag;
-	if (default_remote_name) // did this already
+	if (default_remote_name) /* did this already */
 		return;
 	default_remote_name = xstrdup("origin");
 	current_branch = NULL;