diff --git a/app/operations/gimpcurvesconfig.c b/app/operations/gimpcurvesconfig.c
index 6f5a2ef8b5..42426bcab9 100644
--- a/app/operations/gimpcurvesconfig.c
+++ b/app/operations/gimpcurvesconfig.c
@@ -671,6 +671,8 @@ gimp_curves_config_save_cruft (GimpCurvesConfig  *config,
         }
 
       g_string_append_printf (string, "\n");
+
+      g_object_unref (curve);
     }
 
   if (! g_output_stream_write_all (output, string->str, string->len,