diff --git a/meson.build b/meson.build
index 2a65b03..4697e16 100644
--- a/meson.build
+++ b/meson.build
@@ -24,6 +24,7 @@ conf.set('PYTHON', python.find_installation('python3').full_path())
 conf.set('APP_ID', app_id)
 conf.set('PREFIX', prefix)
 conf.set('VERSION', meson.project_version())
+conf.set('PROFILE', profile)
 conf.set('localedir', join_paths(get_option('prefix'), get_option('localedir')))
 conf.set('pkgdatadir', pkgdatadir)
 
diff --git a/src/shared.py.in b/src/shared.py.in
index a55a0e9..6f08a29 100644
--- a/src/shared.py.in
+++ b/src/shared.py.in
@@ -25,6 +25,7 @@ from gi.repository import Gdk, Gio
 APP_ID = "@APP_ID@"
 VERSION = "@VERSION@"
 PREFIX = "@PREFIX@"
+PROFILE = "@PROFILE@"
 SPEC_VERSION = 1.5  # The version of the game_id.json spec
 
 schema = Gio.Settings.new(APP_ID)
diff --git a/src/window.py b/src/window.py
index 4fc7ccf..d2b8ddf 100644
--- a/src/window.py
+++ b/src/window.py
@@ -90,7 +90,7 @@ class CartridgesWindow(Adw.ApplicationWindow):
 
         self.notice_empty.set_icon_name(shared.APP_ID + "-symbolic")
 
-        if "Devel" in shared.APP_ID:
+        if shared.PROFILE == "development":
             self.add_css_class("devel")
 
         # Connect search entries