diff --git a/wasm_parts/main.go b/wasm_parts/main.go
index e0e44304..0dcfae36 100644
--- a/wasm_parts/main.go
+++ b/wasm_parts/main.go
@@ -33,7 +33,11 @@ var data = map[uint32]*ctx{}
 
 //export createCtx
 func createCtx(id uint32) {
-	data[id] = &ctx{}
+	ctxId := gcContext.GetContextID()
+	gcContext.SetContext(id)
+	c := &ctx{}
+	gcContext.SetContext(ctxId)
+	data[id] = c
 }
 
 //export alloc
diff --git a/wasm_parts/main.wasm.gz b/wasm_parts/main.wasm.gz
index 115f57b5..9eae59b3 100644
Binary files a/wasm_parts/main.wasm.gz and b/wasm_parts/main.wasm.gz differ