1 files changed, 3 insertions, 3 deletions
diff --git a/Source/cmInstallSubdirectoryGenerator.h b/Source/cmInstallSubdirectoryGenerator.h
index b99bdd5ff8..f9cd0f1f9d 100644
--- a/Source/cmInstallSubdirectoryGenerator.h
+++ b/Source/cmInstallSubdirectoryGenerator.h
@@ -20,7 +20,7 @@ class cmInstallSubdirectoryGenerator : public cmInstallGenerator
 {
 public:
   cmInstallSubdirectoryGenerator(cmMakefile* makefile,
-                                 const char* binaryDirectory,
+                                 std::string binaryDirectory,
                                  bool excludeFromAll);
   ~cmInstallSubdirectoryGenerator() override;
 
@@ -33,8 +33,8 @@ public:
 protected:
   void GenerateScript(std::ostream& os) override;
 
-  cmMakefile* Makefile;
-  std::string BinaryDirectory;
+  cmMakefile* const Makefile;
+  std::string const BinaryDirectory;
   cmLocalGenerator* LocalGenerator;
 };