--- coregrind/vg_preloaded.c.orig
+++ coregrind/vg_preloaded.c
@@ -64,7 +64,7 @@
 DEFINE_GDB_PY_SCRIPT(VG_LIBDIR "/valgrind-monitor.py")
 #endif
 
-#if defined(VGO_linux) || defined(VGO_solaris) || defined(VGO_freebsd)
+#if defined(VGO_linux) || defined(VGO_solaris) || defined(VGO_freebsd) || defined(VGO_openbsd)
 
 /* ---------------------------------------------------------------------
    Hook for running __gnu_cxx::__freeres() and __libc_freeres() once
@@ -226,7 +226,7 @@
     // but don't care if it's initialized
 }
 
-#elif defined(VGO_freebsd)
+#elif defined(VGO_freebsd) || defined(VGO_openbsd)
 
 // nothing specific currently
 
