1 files changed, 3 insertions, 3 deletions
diff --git a/src/main/java/org/shedlang/compiler/patio/PatioCodeGenEffects.java b/src/main/java/org/shedlang/compiler/patio/PatioCodeGenEffects.java
index f1897264..1c763f17 100644
--- a/src/main/java/org/shedlang/compiler/patio/PatioCodeGenEffects.java
+++ b/src/main/java/org/shedlang/compiler/patio/PatioCodeGenEffects.java
@@ -50,14 +50,14 @@ public class PatioCodeGenEffects {
         PatioCodeGenContext context
     ) {
         var effectInfo = context.userDefinedEffectInfo(effect);
-        return PatioDataLayouts.struct(Lists.repeat(
+        return PatioCodeGenGc.gcObjectDataLayout(PatioDataLayouts.struct(Lists.repeat(
             PatioDataLayouts.fromType(PatioCodeGenClosures.CLOSURE_TYPE),
             effectInfo.methodCount()
-        ));
+        )));
     }
 
     private static List<Integer> userDefinedEffectMethodOffset(int methodIndex) {
-        return List.of(methodIndex);
+        return PatioCodeGenGc.gcObjectOffset(List.of(methodIndex));
     }
 
     private static final PatioFunctionDeclaration FIND_HANDLER_METHOD_DECLARATION = new PatioFunctionDeclaration(