diff --git a/docs/reference/gtk/getting_started.md b/docs/reference/gtk/getting_started.md
index 656683516c..506690a70e 100644
--- a/docs/reference/gtk/getting_started.md
+++ b/docs/reference/gtk/getting_started.md
@@ -66,6 +66,10 @@ You can compile the program above with GCC using:
 gcc $( pkg-config --cflags gtk4 ) -o example-0 example-0.c $( pkg-config --libs gtk4 )
 ```
 
+**Note**: If the above compilation does not work due to an error regarding `G_APPLICATION_DEFAULT_FLAGS`
+this could be due to your OS providing an older version of GLib. For GLib versions older than 2.74 you
+will need to replace `G_APPLICATION_DEFAULT_FLAGS` with `G_APPLICATION_FLAGS_NONE` in this example, and
+others in this documentation.
 For more information on how to compile a GTK application, please
 refer to the [Compiling GTK Applications](compiling.html)
 section in this reference.