diff --git a/config/CONFIG.Vx.niCpu030 b/config/CONFIG.Vx.niCpu030
index c0c0f33d8..20cdb08ee 100644
--- a/config/CONFIG.Vx.niCpu030
+++ b/config/CONFIG.Vx.niCpu030
@@ -11,6 +11,6 @@ CMPLR_SUFFIX = 68k
 ARCH_CLASS = 68k
 
 # Architecture specific build flags
-ARCH_DEP_CPPFLAGS = -DCPU=MC68030
+ARCH_DEP_CPPFLAGS = -DCPU=MC68030 -DNICPU030
 ARCH_DEP_CFLAGS = -m68030