diff --git a/gio/meson.build b/gio/meson.build
index 24d44989d..1f7c1092d 100644
--- a/gio/meson.build
+++ b/gio/meson.build
@@ -877,7 +877,9 @@ libgio_dep = declare_dependency(link_with : libgio,
 
 pkg.generate(libgio,
   requires : ['glib-2.0', 'gobject-2.0'],
-  variables : ['schemasdir=' + join_paths('${datadir}', schemas_subdir),
+  variables : ['datadir=' + join_paths('${prefix}', get_option('datadir')),
+               'schemasdir=' + join_paths('${datadir}', schemas_subdir),
+               'bindir=' + join_paths('${prefix}', get_option('bindir')),
                'giomoduledir=' + pkgconfig_giomodulesdir,
                'gio=' + join_paths('${bindir}', 'gio'),
                'gio_querymodules=@0@'.format(pkgconfig_multiarch_bindir / 'gio-querymodules'),
diff --git a/glib/meson.build b/glib/meson.build
index fef346e2f..4130b1ba6 100644
--- a/glib/meson.build
+++ b/glib/meson.build
@@ -438,7 +438,8 @@ pkg.generate(libglib,
   libraries_private : [win32_ldflags],
   subdirs : ['glib-2.0'],
   extra_cflags : ['-I${libdir}/glib-2.0/include'] + win32_cflags,
-  variables : ['glib_genmarshal=' + join_paths('${bindir}', 'glib-genmarshal'),
+  variables : ['bindir=' + join_paths('${prefix}', get_option('bindir')),
+               'glib_genmarshal=' + join_paths('${bindir}', 'glib-genmarshal'),
                'gobject_query=' + join_paths('${bindir}', 'gobject-query'),
                'glib_mkenums=' + join_paths('${bindir}', 'glib-mkenums')],
   version : glib_version,