diff --git a/0001-lib-repo-Fix-32-bit-format-string-error.patch b/0001-lib-repo-Fix-32-bit-format-string-error.patch
new file mode 100644
index 0000000..f208dfe
--- /dev/null
+++ b/0001-lib-repo-Fix-32-bit-format-string-error.patch
@@ -0,0 +1,34 @@
+From c49fed3335e6c5213c851ff7b2f00d92462bc210 Mon Sep 17 00:00:00 2001
+From: Colin Walters <walters@verbum.org>
+Date: Thu, 21 Jun 2018 14:17:28 +0000
+Subject: [PATCH] lib/repo: Fix 32 bit format string error
+
+---
+ src/libostree/ostree-repo-commit.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/libostree/ostree-repo-commit.c b/src/libostree/ostree-repo-commit.c
+index 37be748b..7e1d707b 100644
+--- a/src/libostree/ostree-repo-commit.c
++++ b/src/libostree/ostree-repo-commit.c
+@@ -903,7 +903,7 @@ write_content_object (OstreeRepo         *self,
+             return glnx_throw (error, "min-free-space-percent '%u%%' would be exceeded, %s more required",
+                                self->min_free_space_percent, formatted_required);
+           else
+-            return glnx_throw (error, "min-free-space-size %luMB would be exceeded, %s more required",
++            return glnx_throw (error, "min-free-space-size %" G_GUINT64_FORMAT "MB would be exceeded, %s more required",
+                                self->min_free_space_mb, formatted_required);
+         }
+       /* This is the main bit that needs mutex protection */
+@@ -1617,7 +1617,7 @@ ostree_repo_prepare_transaction (OstreeRepo     *self,
+             return glnx_throw (error, "min-free-space-percent '%u%%' would be exceeded, %s available",
+                                self->min_free_space_percent, formatted_free);
+           else
+-            return glnx_throw (error, "min-free-space-size %luMB would be exceeded, %s available",
++            return glnx_throw (error, "min-free-space-size %" G_GUINT64_FORMAT "MB would be exceeded, %s available",
+                                self->min_free_space_mb, formatted_free);
+         }
+       g_mutex_unlock (&self->txn_lock);
+-- 
+2.17.1
+
diff --git a/ostree.spec b/ostree.spec
index acaa1a4..a7db3ab 100644
--- a/ostree.spec
+++ b/ostree.spec
@@ -1,8 +1,9 @@
 Summary: Tool for managing bootable, immutable filesystem trees
 Name: ostree
 Version: 2018.6
-Release: 2%{?dist}
+Release: 3%{?dist}
 Source0: https://github.com/ostreedev/%{name}/releases/download/v%{version}/libostree-%{version}.tar.xz
+Patch32: 0001-lib-repo-Fix-32-bit-format-string-error.patch
 License: LGPLv2+
 URL: https://ostree.readthedocs.io/en/latest/
 
@@ -153,7 +154,7 @@ find %{buildroot} -name '*.la' -delete
 %{_libexecdir}/libostree/ostree-trivial-httpd
 
 %changelog
-* Thu Jun 21 2018 Colin Walters <walters@redhat.com> - 2018.6-2
+* Thu Jun 21 2018 Colin Walters <walters@redhat.com> - 2018.6-3
 - https://github.com/ostreedev/ostree/releases/tag/v2018.6
 
 * Fri May 11 2018 Colin Walters <walters@verbum.org> - 2018.5-1