diff --git a/internal/bundles/assets/import_proto_cli.arraiz b/internal/bundles/assets/import_proto_cli.arraiz
index 62553bcc..d17bbc27 100644
Binary files a/internal/bundles/assets/import_proto_cli.arraiz and b/internal/bundles/assets/import_proto_cli.arraiz differ
diff --git a/pkg/importer/proto/proto_to_sysl.arrai b/pkg/importer/proto/proto_to_sysl.arrai
index 0f0f3c11..b526ad82 100644
--- a/pkg/importer/proto/proto_to_sysl.arrai
+++ b/pkg/importer/proto/proto_to_sysl.arrai
@@ -56,7 +56,7 @@ let typeNameWithPrefix = \typeName \prefix
 # `scope` the current scope containing the messages with type definitions.
 # `prefix` the prefix to use if the type is found in the current scope.
 let referencedType = \t \file \appName \imports \scope \prefix
-    let usePrefix = cond { scope.messages?(t.name)?:{}: prefix };
+    let usePrefix = cond { scope.messages?(t.name)?:{} || scope.enums?(t.name)?:{}: prefix };
     let name = typeNameWithPrefix(t.name, usePrefix);
     # `referencedNs` finds the file that had the original type definition and returns the namespace of that file.
     let referencedNs = \t \file \imports
diff --git a/pkg/importer/proto/tests/google.sysl b/pkg/importer/proto/tests/google.sysl
index d62f408c..60ae38ee 100644
--- a/pkg/importer/proto/tests/google.sysl
+++ b/pkg/importer/proto/tests/google.sysl
@@ -250,7 +250,7 @@ google_protobuf:
         @description =:
             | A single field of a message type.
         @source_path = "google/protobuf/type.proto"
-        cardinality <: Cardinality:
+        cardinality <: Field_Cardinality:
             @description =:
                 | The field cardinality.
             @json_tag = "cardinality"
@@ -265,7 +265,7 @@ google_protobuf:
                 | The field JSON name.
             @json_tag = "jsonName"
             @rpcId = "10"
-        kind <: Kind:
+        kind <: Field_Kind:
             @description =:
                 | The field type.
             @json_tag = "kind"