diff --git a/include/onnxruntime/core/framework/execution_provider.h b/include/onnxruntime/core/framework/execution_provider.h
index 57e9d5e564..708cd50ce4 100644
--- a/include/onnxruntime/core/framework/execution_provider.h
+++ b/include/onnxruntime/core/framework/execution_provider.h
@@ -99,6 +99,9 @@ class IExecutionProvider {
      * The return value is non-null if and only if a matching kernel was found.
      */
     virtual const KernelCreateInfo* LookUpKernel(const Node& node) const = 0;
+
+   protected:
+    ~IKernelLookup() = default;
   };
 
   /**
diff --git a/onnxruntime/core/framework/kernel_type_str_resolver.h b/onnxruntime/core/framework/kernel_type_str_resolver.h
index 0a95faf0b4..39c4eff3a5 100644
--- a/onnxruntime/core/framework/kernel_type_str_resolver.h
+++ b/onnxruntime/core/framework/kernel_type_str_resolver.h
@@ -51,6 +51,9 @@ class IKernelTypeStrResolver {
    */
   virtual Status ResolveKernelTypeStr(const Node& node, std::string_view kernel_type_str,
                                       gsl::span<const ArgTypeAndIndex>& resolved_args) const = 0;
+
+ protected:
+  ~IKernelTypeStrResolver() = default;
 };
 
 /**