diff --git a/obs-packaging/qemu-vanilla/qemu-vanilla.spec-template b/obs-packaging/qemu-vanilla/qemu-vanilla.spec-template
index fa3b90defb..ee96c919fb 100644
--- a/obs-packaging/qemu-vanilla/qemu-vanilla.spec-template
+++ b/obs-packaging/qemu-vanilla/qemu-vanilla.spec-template
@@ -14,6 +14,7 @@ License  : BSD-2-Clause BSD-3-Clause GPL-2.0 GPL-2.0+ LGPL-2.0+ LGPL-2.1
 Requires: qemu-vanilla-bin
 Requires: qemu-vanilla-data
 BuildRequires : automake
+BuildRequires : bc
 BuildRequires : bison
 BuildRequires : flex
 BuildRequires : gcc-c++