diff --git a/contrib/depends/toolchain.cmake.in b/contrib/depends/toolchain.cmake.in
index 6b5434751..ba9f5f939 100644
--- a/contrib/depends/toolchain.cmake.in
+++ b/contrib/depends/toolchain.cmake.in
@@ -8,6 +8,7 @@ OPTION(BUILD_TESTS "Build tests." OFF)
 
 SET(STATIC ON)
 SET(UNBOUND_STATIC ON)
+SET(ARCH "default")
 
 SET(BUILD_TESTS @build_tests@)
 SET(TREZOR_DEBUG @build_tests@)