diff --git a/src/compiler/program.ts b/src/compiler/program.ts
index 31332a92b0a..af0a13d640b 100644
--- a/src/compiler/program.ts
+++ b/src/compiler/program.ts
@@ -1398,8 +1398,8 @@ namespace ts {
             return noDiagnosticsTypeChecker || (noDiagnosticsTypeChecker = createTypeChecker(program, /*produceDiagnostics:*/ false));
         }
 
-        function emit(this: Program, sourceFile?: SourceFile, writeFileCallback?: WriteFileCallback, cancellationToken?: CancellationToken): EmitResult {
-            return runWithCancellationToken(() => emitWorker(this, sourceFile, writeFileCallback, cancellationToken));
+        function emit(sourceFile?: SourceFile, writeFileCallback?: WriteFileCallback, cancellationToken?: CancellationToken): EmitResult {
+            return runWithCancellationToken(() => emitWorker(program, sourceFile, writeFileCallback, cancellationToken));
         }
 
         function isEmitBlocked(emitFileName: string): boolean {