diff --git a/stepmania/src/archutils/Unix/arch_setup.h b/stepmania/src/archutils/Unix/arch_setup.h
index 2e5f928b0e..05e7362297 100644
--- a/stepmania/src/archutils/Unix/arch_setup.h
+++ b/stepmania/src/archutils/Unix/arch_setup.h
@@ -5,6 +5,8 @@
 #include <stdint.h>
 #endif
 
+#define HAVE_CRYPTOPP
+
 // XXX: Maybe we should make sure we're using GCC first?
 // But if not, then what DO we use?
 #include "archutils/Common/gcc_byte_swaps.h"