diff --git a/include/wx/filename.h b/include/wx/filename.h
index bdf955e064..c5edc822c4 100644
--- a/include/wx/filename.h
+++ b/include/wx/filename.h
@@ -316,11 +316,11 @@ public:
 #endif // wxUSE_FFILE
 
     // directory creation and removal.
-    bool Mkdir(int perm = wxS_DIR_DEFAULT, int flags = 0);
+    bool Mkdir(int perm = wxS_DIR_DEFAULT, int flags = 0) const;
     static bool Mkdir(const wxString &dir, int perm = wxS_DIR_DEFAULT,
                       int flags = 0);
 
-    bool Rmdir(int flags = 0);
+    bool Rmdir(int flags = 0) const;
     static bool Rmdir(const wxString &dir, int flags = 0);
 
     // operations on the path
diff --git a/interface/wx/filename.h b/interface/wx/filename.h
index 72bf9273e8..4e1697c7b8 100644
--- a/interface/wx/filename.h
+++ b/interface/wx/filename.h
@@ -892,7 +892,7 @@ public:
         @return Returns @true if the directory was successfully created, @false
                 otherwise.
     */
-    bool Mkdir(int perm = wxS_DIR_DEFAULT, int flags = 0);
+    bool Mkdir(int perm = wxS_DIR_DEFAULT, int flags = 0) const;
 
     /**
         Creates a directory.
@@ -1009,7 +1009,7 @@ public:
         @return Returns @true if the directory was successfully deleted, @false
                 otherwise.
     */
-    bool Rmdir(int flags = 0);
+    bool Rmdir(int flags = 0) const;
 
     /**
         Deletes the specified directory from the file system.
diff --git a/src/common/filename.cpp b/src/common/filename.cpp
index f16ae7127b..2f668ec457 100644
--- a/src/common/filename.cpp
+++ b/src/common/filename.cpp
@@ -1073,7 +1073,7 @@ wxString wxFileName::GetTempDir()
     return dir;
 }
 
-bool wxFileName::Mkdir( int perm, int flags )
+bool wxFileName::Mkdir( int perm, int flags ) const
 {
     return wxFileName::Mkdir(GetPath(), perm, flags);
 }
@@ -1117,7 +1117,7 @@ bool wxFileName::Mkdir( const wxString& dir, int perm, int flags )
     return ::wxMkdir( dir, perm );
 }
 
-bool wxFileName::Rmdir(int flags)
+bool wxFileName::Rmdir(int flags) const
 {
     return wxFileName::Rmdir( GetPath(), flags );
 }