diff --git a/base/src/main/java/org/aya/core/visitor/Subst.java b/base/src/main/java/org/aya/core/visitor/Subst.java
index 49fd5c6604..9cedb76b47 100644
--- a/base/src/main/java/org/aya/core/visitor/Subst.java
+++ b/base/src/main/java/org/aya/core/visitor/Subst.java
@@ -42,7 +42,7 @@ public record Subst(
   }));
 
   public Subst() {
-    this(MutableMap.create());
+    this(MutableLinkedHashMap.of());
   }
 
   public Subst(@NotNull AnyVar var, @NotNull Term term) {
diff --git a/base/src/test/resources/failure/holes/issue747.aya.txt b/base/src/test/resources/failure/holes/issue747.aya.txt
index c6518135ef..c189d603ab 100644
--- a/base/src/test/resources/failure/holes/issue747.aya.txt
+++ b/base/src/test/resources/failure/holes/issue747.aya.txt
@@ -11,7 +11,7 @@ Goal: Goal of type
       Context:
         {a : Nat}
       To ensure confluence:
-        Given (_ ⇒ 0, i ⇒ _), we should have: 0
+        Given (i ⇒ _, _ ⇒ 0), we should have: 0
 
 In file $FILE:11:13 ->