diff --git a/config.c b/config.c
index 0ad55413..3100503f 100644
--- a/config.c
+++ b/config.c
@@ -568,6 +568,7 @@ struct sessionsaver_data {
 static void sessionsaver_data_free(void *ssdv)
 {
     struct sessionsaver_data *ssd = (struct sessionsaver_data *)ssdv;
+    get_sesslist(&ssd->sesslist, FALSE);
     sfree(ssd->savedsession);
     sfree(ssd);
 }
diff --git a/unix/gtkcfg.c b/unix/gtkcfg.c
index ab8ef973..958a3f66 100644
--- a/unix/gtkcfg.c
+++ b/unix/gtkcfg.c
@@ -81,6 +81,7 @@ void gtk_setup_config_box(struct controlbox *b, int midsession, void *win)
             memmove(b->ctrlsets+i, b->ctrlsets+i+1,
                     (b->nctrlsets-i-1) * sizeof(*b->ctrlsets));
             b->nctrlsets--;
+            ctrl_free_set(s2);
             break;
         }
     }