diff --git a/configure/os/CONFIG.Common.vxWorks-68040lc b/configure/os/CONFIG.Common.vxWorks-68040lc
index 426ea8554..6d27f3104 100644
--- a/configure/os/CONFIG.Common.vxWorks-68040lc
+++ b/configure/os/CONFIG.Common.vxWorks-68040lc
@@ -17,4 +17,4 @@ ARCH_CLASS = 68k
 
 # Architecture specific build flags
 ARCH_DEP_CPPFLAGS = -DCPU=MC68LC040
-ARCH_DEP_CFLAGS = -msoft-float
+ARCH_DEP_CFLAGS = -m68040 -msoft-float