diff --git a/SPECS/rpm-ostree.spec b/SPECS/rpm-ostree.spec
index 4923bf9..bcae2a2 100644
--- a/SPECS/rpm-ostree.spec
+++ b/SPECS/rpm-ostree.spec
@@ -57,6 +57,7 @@ BuildRequires: pkgconfig(libarchive)
 BuildRequires: pkgconfig(libsystemd)
 BuildRequires: libcap-devel
 BuildRequires: libattr-devel
+BuildRequires: libassuan-devel
 
 # We currently interact directly with librepo (libdnf below also pulls it in,
 # but duplicating to be clear)