diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index b941609..78dc0d5 100644
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -37,14 +37,16 @@
 CompilerInvocationBase::CompilerInvocationBase()
   : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()),
     DiagnosticOpts(new DiagnosticOptions()),
-    HeaderSearchOpts(new HeaderSearchOptions()) {}
+    HeaderSearchOpts(new HeaderSearchOptions()),
+    PreprocessorOpts(new PreprocessorOptions()) {}
 
 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X)
   : RefCountedBase<CompilerInvocation>(),
     LangOpts(new LangOptions(*X.getLangOpts())), 
     TargetOpts(new TargetOptions(X.getTargetOpts())),
     DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())),
-    HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())) {}
+    HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())),
+    PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {}
 
 //===----------------------------------------------------------------------===//
 // Utility functions.