diff --git a/meson.build b/meson.build
index 2c8a1dd63d..aa08960a3b 100644
--- a/meson.build
+++ b/meson.build
@@ -40,7 +40,7 @@ cdata.set('PACKAGE_VERSION', '"'+meson.project_version()+'"')
 cdata.set('GTK_LOCALEDIR', '"'+get_option('localedir')+'"')
 cdata.set('GTK_DATADIR', '"'+get_option('datadir')+'"')
 cdata.set('GTK_LIBDIR', '"'+get_option('libdir')+'"')
-cdata.set('GTK_MAJOR_VERSION', 'aaa')
+cdata.set('GTK_MAJOR_VERSION', gtk_major_version)
 cdata.set('GTK_MINOR_VERSION', gtk_minor_version)
 cdata.set('GTK_MICRO_VERSION', gtk_micro_version)
 cdata.set('GTK_BINARY_AGE', gtk_binary_age)