diff --git a/renderdoc/driver/metal/metal_resources.h b/renderdoc/driver/metal/metal_resources.h
index 2db69db4a..94c909e4c 100644
--- a/renderdoc/driver/metal/metal_resources.h
+++ b/renderdoc/driver/metal/metal_resources.h
@@ -44,6 +44,7 @@ enum MetalResourceType
   eResRenderPipelineState,
   eResTexture,
   eResRenderCommandEncoder,
+  eResMax
 };
 
 DECLARE_REFLECTION_ENUM(MetalResourceType);
diff --git a/renderdoc/driver/metal/metal_stringise.cpp b/renderdoc/driver/metal/metal_stringise.cpp
index a84f3460d..a37ea8257 100644
--- a/renderdoc/driver/metal/metal_stringise.cpp
+++ b/renderdoc/driver/metal/metal_stringise.cpp
@@ -1066,3 +1066,22 @@ rdcstr DoStringise(const MTL::CullMode &el)
   END_ENUM_STRINGISE();
 };
 
+template <>
+rdcstr DoStringise(const MetalResourceType &el)
+{
+  RDCCOMPILE_ASSERT((uint32_t)MetalResourceType::eResMax == 10, "MetalResourceType changed");
+  BEGIN_ENUM_STRINGISE(MetalResourceType);
+  {
+    STRINGISE_ENUM(eResUnknown);
+    STRINGISE_ENUM(eResBuffer);
+    STRINGISE_ENUM(eResCommandBuffer);
+    STRINGISE_ENUM(eResCommandQueue);
+    STRINGISE_ENUM(eResDevice);
+    STRINGISE_ENUM(eResLibrary);
+    STRINGISE_ENUM(eResFunction);
+    STRINGISE_ENUM(eResRenderPipelineState);
+    STRINGISE_ENUM(eResTexture);
+    STRINGISE_ENUM(eResRenderCommandEncoder);
+  }
+  END_ENUM_STRINGISE();
+}