diff --git a/crates/nargo/tests/test_data/merkle_insert/src/main.nr b/crates/nargo/tests/test_data/merkle_insert/src/main.nr
index d8d7c1b2eb0..a821ae800c9 100644
--- a/crates/nargo/tests/test_data/merkle_insert/src/main.nr
+++ b/crates/nargo/tests/test_data/merkle_insert/src/main.nr
@@ -16,6 +16,7 @@ fn main(
     constrain new_leaf_exists == 1;
 
     let h = std::hash::mimc_bn254(mimc_input);
+    // Regression test for PR #891
     std::println(h);
     constrain h == 18226366069841799622585958305961373004333097209608110160936134895615261821931;
 }