diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index fa18f66..644a4ac 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -23,7 +23,7 @@ reference:
   variables:
     MESON_FLAGS: "-Dwerror=true --buildtype=release"
   before_script:
-    - sudo dnf install -y gtk4-devel meson gcc gi-docgen gobject-introspection-devel
+    - sudo dnf install -y gtk4-devel meson gcc gi-docgen gobject-introspection-devel vala
   script:
     - mkdir -p pfx/
     - meson ${MESON_FLAGS} --prefix=${PWD}/pfx -Ddocs=true _build
diff --git a/lib/meson.build b/lib/meson.build
index 1402c32..d78c244 100644
--- a/lib/meson.build
+++ b/lib/meson.build
@@ -128,7 +128,16 @@ if get_option('introspection').allowed()
               namespace: 'Mks',
           symbol_prefix: 'mks',
       identifier_prefix: 'Mks',
-              includes: ['Gio-2.0', 'Gtk-4.0'],
+               includes: ['Gio-2.0', 'Gtk-4.0'],
                 install: true,
+                 header: 'libmks-1.h'
   )
+
+  if get_option('vapi')
+    libmks_vapi = gnome.generate_vapi('libmks-' + api_version,
+                   sources: libmks_gir[0],
+                  packages: [ 'gio-2.0', 'gtk4'],
+                   install: true,
+    )
+  endif
 endif
\ No newline at end of file
diff --git a/meson_options.txt b/meson_options.txt
index 2662a8d..ece7dad 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -7,3 +7,5 @@ option('docs',
 option('introspection',
        type: 'feature', value: 'auto',
        description: 'Generate gir data')
+
+option('vapi', type: 'boolean', value: true)