diff --git a/nc_optimisation.cmake b/nc_optimisation.cmake
index add187c..939fe16 100644
--- a/nc_optimisation.cmake
+++ b/nc_optimisation.cmake
@@ -4,7 +4,7 @@ include (canonical_host)
 
 
 ###############################################################################
-option(ENABLE_LTO "enable link-time optimisation" OFF)
+option(LTO "enable link-time optimisation" OFF)
 
 
 ##-----------------------------------------------------------------------------
@@ -13,7 +13,7 @@ option(ENABLE_LTO "enable link-time optimisation" OFF)
 ## Rather than rely on the INTERPROCEDURAL_OPTIMISATION flag we add some
 ## arguments explicitly because we want a little more control over object
 ## creation.
-if (ENABLE_LTO)
+if (LTO)
     # Add the linker flags first otherwise the linker may not recognise the
     # object format
     append_link_flag("-fuse-linker-plugin")
@@ -32,13 +32,13 @@ endif ()
 
 
 ###############################################################################
-option(ENABLE_FRAMEPOINTER "retain the framepointer even if optimising" OFF)
+option(FRAMEPOINTER "retain the framepointer even if optimising" OFF)
 
 
 ##-----------------------------------------------------------------------------
-if (ENABLE_FRAMEPOINTER)
-    append_compile_flags("-fno-omit-frame-pointer")
-endif (ENABLE_FRAMEPOINTER)
+if (FRAMEPOINTER)
+    append_compile_flag("-fno-omit-frame-pointer")
+endif ()
 
 
 ###############################################################################