diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 2a853611a43..289265b7572 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -14081,7 +14081,7 @@ namespace ts {
                     }
                     const {declarations, flags} = exports[id];
                     // ECMA262: 15.2.1.1 It is a Syntax Error if the ExportedNames of ModuleItemList contains any duplicate entries. (TS Exceptions: namespaces, function overloads, enums, and interfaces)
-                    if (!(flags & (SymbolFlags.Namespace |SymbolFlags.Interface | SymbolFlags.Enum)) && declarations.length > 1) {
+                    if (!(flags & (SymbolFlags.Namespace | SymbolFlags.Interface | SymbolFlags.Enum)) && declarations.length > 1) {
                         const exportedDeclarations: Declaration[] = filter(declarations, isNotOverload);
                         if (exportedDeclarations.length > 1) {
                             for (const declaration of exportedDeclarations) {