diff --git a/completions/bash/meson.build b/completions/bash/meson.build
index 1dd946f2ac4c905f1694903ad0d99589bd015d40..323ad3973bcacc41bfae7f0a864f6fc9005c7ec3 100644
--- a/completions/bash/meson.build
+++ b/completions/bash/meson.build
@@ -13,7 +13,6 @@ if bash_completion_dir == ''
         default_value: '',
         pkgconfig: 'completionsdir',
         pkgconfig_define: [
-          'prefix', get_option('prefix'),
           'datadir', get_option('prefix') / get_option('datadir'),
         ],
       )