diff --git a/lib/FrontendTool/ExecuteCompilerInvocation.cpp b/lib/FrontendTool/ExecuteCompilerInvocation.cpp
index 53f373d..2f6d4b2 100644
--- a/lib/FrontendTool/ExecuteCompilerInvocation.cpp
+++ b/lib/FrontendTool/ExecuteCompilerInvocation.cpp
@@ -183,7 +183,7 @@
     Opts->PrintHelp(llvm::outs(), "clang -cc1",
                     "LLVM 'Clang' Compiler: http://clang.llvm.org",
                     /*Include=*/ driver::options::CC1Option, /*Exclude=*/ 0);
-    return 0;
+    return true;
   }
 
   // Honor -version.
@@ -191,7 +191,7 @@
   // FIXME: Use a better -version message?
   if (Clang->getFrontendOpts().ShowVersion) {
     llvm::cl::PrintVersionMessage();
-    return 0;
+    return true;
   }
 
   // Load any requested plugins.
@@ -223,7 +223,7 @@
   // This should happen AFTER plugins have been loaded!
   if (Clang->getAnalyzerOpts()->ShowCheckerHelp) {
     ento::printCheckerHelp(llvm::outs(), Clang->getFrontendOpts().Plugins);
-    return 0;
+    return true;
   }
 #endif