diff --git a/syncthing.spec b/syncthing.spec
index c0fc791..ccdefda 100644
--- a/syncthing.spec
+++ b/syncthing.spec
@@ -24,6 +24,7 @@ BuildRequires:  systemd
 BuildRequires:	procps
 BuildRequires:	go >= 1.7
 BuildRequires:	git
+BuildRequires:  upx
 
 Requires(post): systemd
 Requires(preun): systemd