diff --git a/tests/eunify.v b/tests/eunify.v
index c12cc61862ee34ff378f3f5f5142eb61d0210f32..96eb3e66b2ce3a9d55504762cb18dd8b5d60f7bd 100644
--- a/tests/eunify.v
+++ b/tests/eunify.v
@@ -1,4 +1,5 @@
 From stdpp Require Import tactics strings.
+Unset Mangle Names.
 
 Check "eunify_test".
 Lemma eunify_test : ∀ x y, 0 < S x + y.