1 files changed, 5 insertions, 1 deletions
diff --git a/src/win32/registryKey.h b/src/win32/registryKey.h
index 734bfd6..6aceba0 100644
--- a/src/win32/registryKey.h
+++ b/src/win32/registryKey.h
@@ -29,6 +29,8 @@
  *  You should have received a copy of the GNU General Public License
  *  along with anytun.  If not, see <http://www.gnu.org/licenses/>.
  */
+#ifndef ANYTUN_win32_registryKey_h_INCLUDED
+#define ANYTUN_win32_registryKey_h_INCLUDED
 
 #include <string.h>
 #include <windows.h>
@@ -55,4 +57,6 @@ private:
   HKEY key_;
   bool opened_;
   std::string name_;
-};
-\ No newline at end of file
+};
+
+#endif