diff --git a/meson.build b/meson.build
index 6dfdc70..0895611 100644
--- a/meson.build
+++ b/meson.build
@@ -93,9 +93,6 @@ endif
 if get_option('WithBlueZ')
   add_global_arguments('-DWITH_BLUEZ', language: 'cpp')
 endif
-if get_option('WithSys')
-  add_global_arguments('-DWITH_SYS', language: 'cpp')
-endif
 if get_option('WithSNI')
   add_global_arguments('-DWITH_SNI', language: 'cpp')
 
diff --git a/meson_options.txt b/meson_options.txt
index 8e6e9e4..03feeb3 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -10,6 +10,3 @@ option('WithSNI', type: 'boolean', value : true)
 option('WithNvidia', type: 'boolean', value : true)
 option('WithAMD', type: 'boolean', value : true)
 option('WithBlueZ', type: 'boolean', value : true)
-
-# You shouldn't enable this, unless you know what you are doing!
-option('WithSys', type: 'boolean', value : false)