diff --git a/src/compiler/emitter.ts b/src/compiler/emitter.ts
index b2b52d11ffd..9e7cbd1bb0c 100644
--- a/src/compiler/emitter.ts
+++ b/src/compiler/emitter.ts
@@ -226,8 +226,7 @@ namespace ts {
                 printSourceFileOrBundle(declarationFilePath, declarationMapPath, declarationTransform.transformed[0], /* bundleInfopath*/ undefined, declarationPrinter, declarationSourceMap);
                 if (emitOnlyDtsFiles && declarationTransform.transformed[0].kind === SyntaxKind.SourceFile) {
                     const sourceFile = declarationTransform.transformed[0] as SourceFile;
-                    exportedModulesFromDeclarationEmit = sourceFile.getExportedModulesFromDeclarationEmit &&
-                        sourceFile.getExportedModulesFromDeclarationEmit();
+                    exportedModulesFromDeclarationEmit = sourceFile.exportedModulesFromDeclarationEmit;
                 }
             }
             declarationTransform.dispose();
diff --git a/src/compiler/transformers/declarations.ts b/src/compiler/transformers/declarations.ts
index 700dac68d2b..13c05e0f0de 100644
--- a/src/compiler/transformers/declarations.ts
+++ b/src/compiler/transformers/declarations.ts
@@ -234,10 +234,10 @@ namespace ts {
             }
             const updated = updateSourceFileNode(node, combinedStatements, /*isDeclarationFile*/ true, references, getFileReferencesForUsedTypeReferences(), node.hasNoDefaultLib);
             if (exportedModuleSpecifiers || exportedModuleSymbolsUsingImportTypeNodes) {
-                updated.getExportedModulesFromDeclarationEmit = () => ({
+                updated.exportedModulesFromDeclarationEmit = {
                     exportedModuleSpecifiers: exportedModuleSpecifiers || emptyArray,
                     exportedModuleSymbolsUsingImportTypeNodes: exportedModuleSymbolsUsingImportTypeNodes || emptyArray
-                });
+                };
             }
             return updated;
 
diff --git a/src/compiler/types.ts b/src/compiler/types.ts
index 79d0f91b0fb..1bd2ca76db7 100644
--- a/src/compiler/types.ts
+++ b/src/compiler/types.ts
@@ -2625,7 +2625,7 @@ namespace ts {
         /* @internal */ localJsxNamespace?: __String;
         /* @internal */ localJsxFactory?: EntityName;
 
-        /*@internal*/ getExportedModulesFromDeclarationEmit?(): ExportedModulesFromDeclarationEmit;
+        /*@internal*/ exportedModulesFromDeclarationEmit?: ExportedModulesFromDeclarationEmit;
     }
 
     /*@internal*/