diff --git a/hpp/cmlib_private_config.hpp.in b/hpp/cmlib_private_config.hpp.in
index d5a3de6..ce055d0 100644
--- a/hpp/cmlib_private_config.hpp.in
+++ b/hpp/cmlib_private_config.hpp.in
@@ -1,10 +1,10 @@
-#ifndef @CMLIB_PROJECT_NAME_CANONICAL@_CMLIB_CONFIG_HPP_
-#define @CMLIB_PROJECT_NAME_CANONICAL@_CMLIB_CONFIG_HPP_
+#ifndef @CMLIB_PROJECT_NAME_UPPER@_CMLIB_CONFIG_HPP_
+#define @CMLIB_PROJECT_NAME_UPPER@_CMLIB_CONFIG_HPP_
 
 #pragma once
 
-#define @CMLIB_PROJECT_NAME_CANONICAL@_VERSION_STR "@PROJECT_VERSION@"
-#define @CMLIB_PROJECT_NAME_CANONICAL@_VERSION_INT @PROJECT_VERSION_INT@
+#define @CMLIB_PROJECT_NAME_UPPER@_VERSION_STR "@PROJECT_VERSION@"
+#define @CMLIB_PROJECT_NAME_UPPER@_VERSION_INT @PROJECT_VERSION_INT@
 
 #if defined (CMLIB_ORGANIZATION_NAME)
 #error "Duplicate definition of macros CMLIB_ORGANIZATION_NAME"
@@ -90,5 +90,5 @@
 #define CMLIB_BUILD_DATE "@TODAY@"
 #endif
 
-#endif /* @CMLIB_PROJECT_NAME_CANONICAL@_CMLIB_CONFIG_HPP_ */
+#endif /* @CMLIB_PROJECT_NAME_UPPER@_CMLIB_CONFIG_HPP_ */