diff --git a/build/CMakeLists.txt b/build/CMakeLists.txt
index 1f18beb7..b116bd56 100644
--- a/build/CMakeLists.txt
+++ b/build/CMakeLists.txt
@@ -174,7 +174,7 @@ if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
   set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pipe")
   if (WITH_HARDENING)
     add_definitions( "-D_FORTIFY_SOURCE=2" )
-    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wformat -Wformat-security -Werror=format-security" )
+    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wformat -Wformat-security -Werror=format-security -Wno-unused-parameter" )
     set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fstack-protector --param ssp-buffer-size=4" )
   endif ()
 elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")