The LUKS cases in qemu-iotests requires this.

Signed-off-by: Fam Zheng <famz@redhat.com>
---
 tests/docker/dockerfiles/fedora.docker | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tests/docker/dockerfiles/fedora.docker b/tests/docker/dockerfiles/fedora.docker
index 4eaa8ed2a5..27e8201c54 100644
--- a/tests/docker/dockerfiles/fedora.docker
+++ b/tests/docker/dockerfiles/fedora.docker
@@ -3,6 +3,7 @@ ENV PACKAGES \
     ccache git tar PyYAML sparse flex bison python2 bzip2 hostname \
     glib2-devel pixman-devel zlib-devel SDL-devel libfdt-devel \
     gcc gcc-c++ clang make perl which bc findutils libaio-devel \
+    nettle-devel \
     mingw32-pixman mingw32-glib2 mingw32-gmp mingw32-SDL mingw32-pkg-config \
     mingw32-gtk2 mingw32-gtk3 mingw32-gnutls mingw32-nettle mingw32-libtasn1 \
     mingw32-libjpeg-turbo mingw32-libpng mingw32-curl mingw32-libssh2 \
-- 
2.13.5