diff --git a/Source/cmCoreTryCompile.cxx b/Source/cmCoreTryCompile.cxx
index 5b5d6b69b..c4145536e 100644
--- a/Source/cmCoreTryCompile.cxx
+++ b/Source/cmCoreTryCompile.cxx
@@ -296,7 +296,7 @@ int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv)
             cmVersion::GetPatchVersion(), cmVersion::GetTweakVersion());
     if(def)
       {
-      fprintf(fout, "set(CMAKE_MODULE_PATH %s)\n", def);
+      fprintf(fout, "set(CMAKE_MODULE_PATH \"%s\")\n", def);
       }
 
     std::string projectLangs;