diff --git a/src/cst.ts b/src/cst.ts
index 54af309df..b39d40abc 100644
--- a/src/cst.ts
+++ b/src/cst.ts
@@ -1068,7 +1068,7 @@ export class ReferenceTypeExpression extends SyntaxBase {
   public readonly kind = SyntaxKind.ReferenceTypeExpression;
 
   public constructor(
-    public modulePath: Array<[Identifier, Dot]>,
+    public modulePath: Array<[IdentifierAlt, Dot]>,
     public name: IdentifierAlt,
   ) {
     super();
diff --git a/src/parser.ts b/src/parser.ts
index cc5199f7e..ccd60bdb8 100644
--- a/src/parser.ts
+++ b/src/parser.ts
@@ -1,4 +1,5 @@
 
+import { warn } from "console";
 import {
   ReferenceTypeExpression,
   SourceFile,
@@ -172,8 +173,19 @@ export class Parser {
   }
 
   public parseReferenceTypeExpression(): ReferenceTypeExpression {
+    const modulePath = [];
+    for (;;) {
+      const t1 = this.peekToken(1);
+      const t2 = this.peekToken(2);
+      if (t1.kind !== SyntaxKind.IdentifierAlt || t2.kind !== SyntaxKind.Dot) {
+        break;
+      }
+      this.getToken();
+      this.getToken();
+      modulePath.push([t1, t2] as [IdentifierAlt, Dot]);
+    }
     const name = this.expectToken(SyntaxKind.IdentifierAlt);
-    return new ReferenceTypeExpression([], name);
+    return new ReferenceTypeExpression(modulePath, name);
   }
 
   public parsePrimitiveTypeExpression(): TypeExpression {