diff --git a/libgimpconfig/gimpconfig-params.h b/libgimpconfig/gimpconfig-params.h
index 3f7704d82a..943b4d38d6 100644
--- a/libgimpconfig/gimpconfig-params.h
+++ b/libgimpconfig/gimpconfig-params.h
@@ -65,6 +65,7 @@ G_BEGIN_DECLS
 
 #define GIMP_CONFIG_PARAM_FLAGS (G_PARAM_READWRITE | \
                                  G_PARAM_CONSTRUCT | \
+                                 G_PARAM_STATIC_STRINGS | \
                                  GIMP_CONFIG_PARAM_SERIALIZE)