diff --git a/engine/resources/http_server_file.go b/engine/resources/http_server_file.go
index f124459e..d1e19446 100644
--- a/engine/resources/http_server_file.go
+++ b/engine/resources/http_server_file.go
@@ -52,6 +52,8 @@ func init() {
 	engine.RegisterResource(httpServerFileKind, func() engine.Res { return &HTTPServerFileRes{} })
 }
 
+var _ HTTPServerGroupableRes = &HTTPServerFileRes{} // compile time check
+
 // HTTPServerFileRes is a file that exists within an http server. The name is
 // used as the public path of the file, unless the filename field is specified,
 // and in that case it is used instead. The way this works is that it autogroups
diff --git a/engine/resources/http_server_flag.go b/engine/resources/http_server_flag.go
index ee6302fe..f637c63c 100644
--- a/engine/resources/http_server_flag.go
+++ b/engine/resources/http_server_flag.go
@@ -48,6 +48,8 @@ func init() {
 	engine.RegisterResource(httpServerFlagKind, func() engine.Res { return &HTTPServerFlagRes{} })
 }
 
+var _ HTTPServerGroupableRes = &HTTPServerFlagRes{} // compile time check
+
 // HTTPServerFlagRes is a special path that exists within an http server. The
 // name is used as the public path of the flag, unless the path field is
 // specified, and in that case it is used instead. The way this works is that it
diff --git a/engine/resources/http_server_proxy.go b/engine/resources/http_server_proxy.go
index 6b809860..b1c46ae9 100644
--- a/engine/resources/http_server_proxy.go
+++ b/engine/resources/http_server_proxy.go
@@ -65,6 +65,8 @@ func init() {
 	engine.RegisterResource(httpServerProxyKind, func() engine.Res { return &HTTPServerProxyRes{} })
 }
 
+var _ HTTPServerGroupableRes = &HTTPServerProxyRes{} // compile time check
+
 // HTTPServerProxyRes is a resource representing a special path that exists
 // within an http server. The name is used as the public path of the endpoint,
 // unless the path field is specified, and in that case it is used instead. The
diff --git a/engine/resources/http_server_ui.go b/engine/resources/http_server_ui.go
index 679ac7dc..58491d48 100644
--- a/engine/resources/http_server_ui.go
+++ b/engine/resources/http_server_ui.go
@@ -70,6 +70,8 @@ func init() {
 	engine.RegisterResource(httpServerUIKind, func() engine.Res { return &HTTPServerUIRes{} })
 }
 
+var _ HTTPServerGroupableRes = &HTTPServerUIRes{} // compile time check
+
 // HTTPServerUIGroupableRes is the interface that you must implement if you want
 // to allow a resource the ability to be grouped into the http server ui
 // resource. As an added safety, the Kind must also begin with
diff --git a/engine/resources/http_server_ui_input.go b/engine/resources/http_server_ui_input.go
index 8234099e..8917e5e4 100644
--- a/engine/resources/http_server_ui_input.go
+++ b/engine/resources/http_server_ui_input.go
@@ -57,6 +57,8 @@ func init() {
 	engine.RegisterResource(httpServerUIInputKind, func() engine.Res { return &HTTPServerUIInputRes{} })
 }
 
+var _ HTTPServerUIGroupableRes = &HTTPServerUIInputRes{} // compile time check
+
 // HTTPServerUIInputRes is a form element that exists within a http:server:ui
 // resource, which exists within an http server. The name is used as the unique
 // id of the field, unless the id field is specified, and in that case it is