diff --git a/generator/templates/mock_webgpu.cpp b/generator/templates/mock_webgpu.cpp
index 4f48551fa4..6b8c5a6863 100644
--- a/generator/templates/mock_webgpu.cpp
+++ b/generator/templates/mock_webgpu.cpp
@@ -149,8 +149,9 @@ void ProcTableAsClass::CallFenceOnCompletionCallback(WGPUFence fence,
     }
 {% endfor %}
 
-MockProcTable::MockProcTable() {
-}
+MockProcTable::MockProcTable() = default;
+
+MockProcTable::~MockProcTable() = default;
 
 void MockProcTable::IgnoreAllReleaseCalls() {
     {% for type in by_category["object"] %}
diff --git a/generator/templates/mock_webgpu.h b/generator/templates/mock_webgpu.h
index bdef4fbe29..78b9b78ef3 100644
--- a/generator/templates/mock_webgpu.h
+++ b/generator/templates/mock_webgpu.h
@@ -116,6 +116,7 @@ class ProcTableAsClass {
 class MockProcTable : public ProcTableAsClass {
     public:
         MockProcTable();
+        ~MockProcTable() override;
 
         void IgnoreAllReleaseCalls();