diff --git a/x/wasm/keeper/wasmtesting/store.go b/x/wasm/keeper/wasmtesting/store.go
index 2cb9a6de6f..cb0cab86b0 100644
--- a/x/wasm/keeper/wasmtesting/store.go
+++ b/x/wasm/keeper/wasmtesting/store.go
@@ -23,3 +23,7 @@ type mockCMS struct {
 func (m *mockCMS) Write() {
 	*m.committed = true
 }
+
+func (m *mockCMS) RunAtomic(cb func(storetypes.CacheMultiStore) error) error {
+	return cb(m.CacheMultiStore())
+}