--- include/pub_tool_vkiscnums_asm.h.orig
+++ include/pub_tool_vkiscnums_asm.h
@@ -77,6 +77,9 @@
 #elif defined(VGP_x86_freebsd) || defined(VGP_amd64_freebsd)
 #  include "vki/vki-scnums-freebsd.h"
 
+#elif defined(VGP_x86_openbsd) || defined(VGP_amd64_openbsd)
+#  include "vki/vki-scnums-openbsd.h"
+
 #elif defined(VGP_x86_darwin) || defined(VGP_amd64_darwin)
 #  include "vki/vki-scnums-darwin.h"
 
