diff --git a/build-aux/flatpak/org.gtk.Demo4.json b/build-aux/flatpak/org.gtk.Demo4.json
index 7e625478ee..8efb2e9d1a 100644
--- a/build-aux/flatpak/org.gtk.Demo4.json
+++ b/build-aux/flatpak/org.gtk.Demo4.json
@@ -70,7 +70,8 @@
             "config-opts" : [
                 "--libdir=/app/lib",
                 "-Denable_vulkan=no",
-                "-Dbuildtype=debugoptimized"
+                "-Dbuildtype=debugoptimized",
+                "-Dprofile=devel"
             ],
             "sources" : [
                 {
diff --git a/build-aux/flatpak/org.gtk.IconBrowser4.json b/build-aux/flatpak/org.gtk.IconBrowser4.json
index 14960965cd..65bb182b43 100644
--- a/build-aux/flatpak/org.gtk.IconBrowser4.json
+++ b/build-aux/flatpak/org.gtk.IconBrowser4.json
@@ -70,7 +70,8 @@
             "config-opts" : [
                 "--libdir=/app/lib",
                 "-Denable_vulkan=no",
-                "-Dbuildtype=debugoptimized"
+                "-Dbuildtype=debugoptimized",
+                "-Dprofile=devel"
             ],
             "sources" : [
                 {
diff --git a/build-aux/flatpak/org.gtk.WidgetFactory4.json b/build-aux/flatpak/org.gtk.WidgetFactory4.json
index ccc2c63c99..5fd1b8a678 100644
--- a/build-aux/flatpak/org.gtk.WidgetFactory4.json
+++ b/build-aux/flatpak/org.gtk.WidgetFactory4.json
@@ -70,7 +70,8 @@
             "config-opts" : [
                 "--libdir=/app/lib",
                 "-Denable_vulkan=no",
-                "-Dbuildtype=debugoptimized"
+                "-Dbuildtype=debugoptimized",
+                "-Dprofile=devel"
             ],
             "sources" : [
                 {