1 files changed, 1 insertions, 1 deletions
diff --git a/test/unit/rb.c b/test/unit/rb.c
index b38eb0e..0262037 100644
--- a/test/unit/rb.c
+++ b/test/unit/rb.c
@@ -21,7 +21,7 @@ struct node_s {
 };
 
 static int
-node_cmp(node_t *a, node_t *b) {
+node_cmp(const node_t *a, const node_t *b) {
 	int ret;
 
 	assert_u32_eq(a->magic, NODE_MAGIC, "Bad magic");