diff --git a/src/compiler/declarationEmitter.ts b/src/compiler/declarationEmitter.ts
index e5914d10060..ffe4f9a2837 100644
--- a/src/compiler/declarationEmitter.ts
+++ b/src/compiler/declarationEmitter.ts
@@ -326,6 +326,7 @@ namespace ts {
                 case SyntaxKind.BooleanKeyword:
                 case SyntaxKind.SymbolKeyword:
                 case SyntaxKind.VoidKeyword:
+                case SyntaxKind.ThisKeyword:
                 case SyntaxKind.StringLiteral:
                     return writeTextOfNode(currentSourceFile, type);
                 case SyntaxKind.ExpressionWithTypeArguments: