1diff --git a/meson.build b/meson.build
2index 2350a1f..56f015d 100644
3--- a/meson.build
4+++ b/meson.build
5@@ -551,7 +551,7 @@ pkgconfig.generate(
6 variables: [
7 'datadir=${prefix}/share',
8 'pluginsdir=${libdir}/@0@'.format(lib_name),
9- 'girdir=${datadir}/gir-1.0',
10+ 'girdir=@0@/share/gir-1.0'.format(get_option('prefix-dev')),
11 'typelibdir=${libdir}/girepository-1.0',
12 ],
13 uninstalled_variables: [
14diff --git a/meson_options.txt b/meson_options.txt
15index f9d558c..3cac593 100644
16--- a/meson_options.txt
17+++ b/meson_options.txt
18@@ -9,6 +9,11 @@ option('enable-gir',
19 choices: ['auto', 'true', 'false'],
20 description: 'gobject introspection .gir generation'
21 )
22+option('prefix-dev',
23+ type: 'string',
24+ value: '',
25+ description: 'Like prefix but for dev output of the package'
26+)
27 option('enable-vapi',
28 type: 'boolean',
29 value: 'true',