diff --git a/common/flatpak-dir.c b/common/flatpak-dir.c
index 0e672864..092ba65a 100644
--- a/common/flatpak-dir.c
+++ b/common/flatpak-dir.c
@@ -5358,12 +5358,13 @@ export_mime_file (int           parent_fd,
 static char *
 format_flatpak_run_args_from_run_opts (GStrv flatpak_run_args)
 {
-  GString *str = g_string_new ("");
+  GString *str;
   GStrv iter = flatpak_run_args;
 
   if (flatpak_run_args == NULL)
     return NULL;
 
+  str = g_string_new ("");
   for (; *iter != NULL; ++iter)
     {
       if (g_strcmp0 (*iter, "no-a11y-bus") == 0)
diff --git a/common/flatpak-installation.c b/common/flatpak-installation.c
index f8375492..edc489ba 100644
--- a/common/flatpak-installation.c
+++ b/common/flatpak-installation.c
@@ -1043,7 +1043,7 @@ flatpak_installation_list_installed_refs_for_update (FlatpakInstallation *self,
     {
       FlatpakInstalledRef *installed_ref = g_ptr_array_index (installed, i);
       const char *remote_name = flatpak_installed_ref_get_origin (installed_ref);
-      const char *ref = flatpak_ref_format_ref (FLATPAK_REF (installed_ref));
+      g_autofree char *ref = flatpak_ref_format_ref (FLATPAK_REF (installed_ref));
       g_autofree char *collection_id = NULL;
       g_autoptr(OstreeCollectionRef) collection_ref = NULL;