diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index cfe2c5a6bf2..11bb737e986 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -1364,6 +1364,9 @@ namespace ts {
         // An 'import { Point } from "graphics"' needs to create a symbol that combines the value side 'Point'
         // property with the type/namespace side interface 'Point'.
         function combineValueAndTypeSymbols(valueSymbol: Symbol, typeSymbol: Symbol): Symbol {
+            if (valueSymbol === unknownSymbol && typeSymbol === unknownSymbol) {
+                return unknownSymbol;
+            }
             if (valueSymbol.flags & (SymbolFlags.Type | SymbolFlags.Namespace)) {
                 return valueSymbol;
             }