diff --git a/tools/lto/LTOCodeGenerator.h b/tools/lto/LTOCodeGenerator.h
index 7a931526b74..4a28136f0ad 100644
--- a/tools/lto/LTOCodeGenerator.h
+++ b/tools/lto/LTOCodeGenerator.h
@@ -26,7 +26,6 @@
 // C++ class which implements the opaque lto_code_gen_t
 //
 
-class llvm::raw_ostream;
 class LTOCodeGenerator {
 public:
     static const char*        getVersionString();