diff --git a/stratosphere/libstratosphere/include/stratosphere/sf/cmif/sf_cmif_server_message_processor.hpp b/stratosphere/libstratosphere/include/stratosphere/sf/cmif/sf_cmif_server_message_processor.hpp
index ef4d1f2d6..4f97cf448 100644
--- a/stratosphere/libstratosphere/include/stratosphere/sf/cmif/sf_cmif_server_message_processor.hpp
+++ b/stratosphere/libstratosphere/include/stratosphere/sf/cmif/sf_cmif_server_message_processor.hpp
@@ -69,7 +69,7 @@ namespace ams::sf::cmif {
     class ServerMessageProcessor {
         public:
             /* Used to enabled templated message processors. */
-            virtual void SetImplementationProcessor(ServerMessageProcessor *impl) { /* ... */ }
+            virtual void SetImplementationProcessor(ServerMessageProcessor *impl) = 0;
             virtual const ServerMessageRuntimeMetadata GetRuntimeMetadata() const = 0;
 
             virtual Result PrepareForProcess(const ServiceDispatchContext &ctx, const ServerMessageRuntimeMetadata runtime_metadata) const = 0;
diff --git a/stratosphere/libstratosphere/include/stratosphere/sf/impl/sf_impl_command_serialization.hpp b/stratosphere/libstratosphere/include/stratosphere/sf/impl/sf_impl_command_serialization.hpp
index 0dfdd763f..794aae6df 100644
--- a/stratosphere/libstratosphere/include/stratosphere/sf/impl/sf_impl_command_serialization.hpp
+++ b/stratosphere/libstratosphere/include/stratosphere/sf/impl/sf_impl_command_serialization.hpp
@@ -720,8 +720,27 @@ namespace ams::sf::impl {
             }
     };
 
+    class HipcCommandProcessorCommon : public sf::cmif::ServerMessageProcessor {
+        public:
+            virtual void SetImplementationProcessor(sf::cmif::ServerMessageProcessor *) override final { /* ... */ }
+
+            virtual void PrepareForErrorReply(const cmif::ServiceDispatchContext &ctx, cmif::PointerAndSize &out_raw_data, const cmif::ServerMessageRuntimeMetadata runtime_metadata) override final {
+                const size_t raw_size = runtime_metadata.GetOutHeadersSize();
+                const auto response = hipcMakeRequestInline(ctx.out_message_buffer.GetPointer(),
+                    .type = CmifCommandType_Invalid, /* Really response */
+                    .num_data_words = static_cast<u32>((util::AlignUp(raw_size, 0x4) + 0x10 /* padding */) / sizeof(u32)),
+                );
+                out_raw_data = cmif::PointerAndSize(util::AlignUp(reinterpret_cast<uintptr_t>(response.data_words), 0x10), raw_size);
+            }
+
+            virtual Result GetInObjects(cmif::ServiceObjectHolder *in_objects) const override final {
+                /* By default, InObjects aren't supported. */
+                return sf::ResultNotSupported();
+            }
+    };
+
     template<typename CommandMeta>
-    struct HipcCommandProcessor : public sf::cmif::ServerMessageProcessor {
+    struct HipcCommandProcessor : public HipcCommandProcessorCommon {
         public:
             virtual const cmif::ServerMessageRuntimeMetadata GetRuntimeMetadata() const override final {
                 return CommandMeta::RuntimeMetadata;
@@ -760,20 +779,6 @@ namespace ams::sf::impl {
                 return response;
             }
 
-            virtual void PrepareForErrorReply(const cmif::ServiceDispatchContext &ctx, cmif::PointerAndSize &out_raw_data, const cmif::ServerMessageRuntimeMetadata runtime_metadata) override final {
-                const size_t raw_size = runtime_metadata.GetOutHeadersSize();
-                const auto response = hipcMakeRequestInline(ctx.out_message_buffer.GetPointer(),
-                    .type = CmifCommandType_Invalid, /* Really response */
-                    .num_data_words = static_cast<u32>((util::AlignUp(raw_size, 0x4) + 0x10 /* padding */) / sizeof(u32)),
-                );
-                out_raw_data = cmif::PointerAndSize(util::AlignUp(reinterpret_cast<uintptr_t>(response.data_words), 0x10), raw_size);
-            }
-
-            virtual Result GetInObjects(cmif::ServiceObjectHolder *in_objects) const override final {
-                /* By default, InObjects aren't supported. */
-                return sf::ResultNotSupported();
-            }
-
             virtual void SetOutObjects(const cmif::ServiceDispatchContext &ctx, const HipcRequest &response, cmif::ServiceObjectHolder *out_objects, cmif::DomainObjectId *ids) override final {
                 #define _SF_IMPL_PROCESSOR_SET_OUT_OBJECT_IMPL(n) do { if constexpr (CommandMeta::NumOutObjects > n) { SetOutObjectImpl<n>(response, ctx.manager, std::move(out_objects[n])); } } while (0)
                 _SF_IMPL_PROCESSOR_SET_OUT_OBJECT_IMPL(0);