diff --git a/gio/gdbus-2.0/codegen/codegen.py b/gio/gdbus-2.0/codegen/codegen.py
index 97229c836..1dbf94d9b 100644
--- a/gio/gdbus-2.0/codegen/codegen.py
+++ b/gio/gdbus-2.0/codegen/codegen.py
@@ -58,7 +58,8 @@ class CodeGenerator:
         self.c.write('/*\n'
                      ' * Generated by gdbus-codegen %s. DO NOT EDIT.\n'
                      ' *\n'
-                     ' * The license of this code is the same as for the source it was derived from.\n'
+                     ' * The license of this code is the same as for the D-Bus interface description\n'
+                     ' * it was derived from.\n'
                      ' */\n'
                      '\n'
                      %(config.VERSION))
@@ -222,7 +223,8 @@ class CodeGenerator:
         self.h.write('/*\n'
                      ' * Generated by gdbus-codegen %s. DO NOT EDIT.\n'
                      ' *\n'
-                     ' * The license of this code is the same as for the source it was derived from.\n'
+                     ' * The license of this code is the same as for the D-Bus interface description\n'
+                     ' * it was derived from.\n'
                      ' */\n'
                      '\n'
                      '#ifndef __%s__\n'