diff --git a/src/libostree/ostree-repo-pull.c b/src/libostree/ostree-repo-pull.c
index 2a302ba9..f3b8253a 100644
--- a/src/libostree/ostree-repo-pull.c
+++ b/src/libostree/ostree-repo-pull.c
@@ -1857,7 +1857,7 @@ ostree_repo_pull_with_options (OstreeRepo             *self,
 
       if (pull_data->summary)
         {
-          guint64 commit_size = 0;
+          gsize commit_size = 0;
           guint64 *malloced_size;
 
           if (!lookup_commit_checksum_from_summary (pull_data, branch, &contents, &commit_size, error))
diff --git a/src/libostree/ostree-repo-static-delta-compilation.c b/src/libostree/ostree-repo-static-delta-compilation.c
index 24fe8f4f..96c6324b 100644
--- a/src/libostree/ostree-repo-static-delta-compilation.c
+++ b/src/libostree/ostree-repo-static-delta-compilation.c
@@ -548,7 +548,7 @@ ostree_repo_static_delta_generate (OstreeRepo                   *self,
 
       g_printerr ("part %u n:%u compressed:%" G_GUINT64_FORMAT " uncompressed:%" G_GUINT64_FORMAT "\n",
                   i, part_builder->objects->len,
-                  g_variant_get_size (delta_part),
+                  (guint64)g_variant_get_size (delta_part),
                   part_builder->uncompressed_size);
     }