diff --git a/src/compiler/declarationEmitter.ts b/src/compiler/declarationEmitter.ts
index ab0b16947fc..2963ddf6c58 100644
--- a/src/compiler/declarationEmitter.ts
+++ b/src/compiler/declarationEmitter.ts
@@ -1316,7 +1316,7 @@ namespace ts {
                 if (node.kind === SyntaxKind.FunctionDeclaration) {
                     emitModuleElementDeclarationFlags(node);
                 }
-                else if (node.kind === SyntaxKind.MethodDeclaration) {
+                else if (node.kind === SyntaxKind.MethodDeclaration || node.kind === SyntaxKind.Constructor) {
                     emitClassMemberDeclarationFlags(node.flags);
                 }
                 if (node.kind === SyntaxKind.FunctionDeclaration) {