1 files changed, 3 insertions, 0 deletions
diff --git a/unittests/Lex/LexerTest.cpp b/unittests/Lex/LexerTest.cpp
index 7fca7f4e49..a7c6284951 100644
--- a/unittests/Lex/LexerTest.cpp
+++ b/unittests/Lex/LexerTest.cpp
@@ -59,6 +59,9 @@ class VoidModuleLoader : public ModuleLoader {
                                       bool IsInclusionDirective) {
     return ModuleLoadResult();
   }
+
+  virtual void makeModuleVisible(Module *Mod,
+                                 Module::NameVisibilityKind Visibility) { }
 };
 
 TEST_F(LexerTest, LexAPI) {