2 files changed, 4 insertions, 4 deletions
diff --git a/src/test/java/org/shedlang/compiler/patio/PatioSerializerTests.java b/src/test/java/org/shedlang/compiler/patio/PatioSerializerTests.java
index 1b61ec87..f3371dc3 100644
--- a/src/test/java/org/shedlang/compiler/patio/PatioSerializerTests.java
+++ b/src/test/java/org/shedlang/compiler/patio/PatioSerializerTests.java
@@ -64,12 +64,12 @@ public class PatioSerializerTests {
 
     @Test
     public void canSerializeDataElementMutable() {
-        var element = Patio.dataElementMutable("x", PatioDataLayouts.INT);
+        var element = Patio.dataElementMutable("x", PatioDataValues.int_(42));
 
         var string = PatioTesting.serializeCompilationUnitElement(element);
 
         assertThat(string, equalTo("""
-            (data-mutable "x" int)"""
+            (data-mutable "x" (int 42))"""
         ));
     }
 
diff --git a/src/test/java/org/shedlang/compiler/patio/instructions/Patio.java b/src/test/java/org/shedlang/compiler/patio/instructions/Patio.java
index 06b12592..b7547435 100644
--- a/src/test/java/org/shedlang/compiler/patio/instructions/Patio.java
+++ b/src/test/java/org/shedlang/compiler/patio/instructions/Patio.java
@@ -91,9 +91,9 @@ public class Patio {
 
     public static PatioDataElementMutable dataElementMutable(
         String name,
-        PatioDataLayout layout
+        PatioDataValue initialValue
     ) {
-        return new PatioDataElementMutable(name, layout, Sources.NULL);
+        return new PatioDataElementMutable(name, initialValue, Sources.NULL);
     }
 
     public static PatioOperand dataPtr(String name) {