diff --git a/sim/mn10300/simops.c b/sim/mn10300/simops.c
index 3fe67998219..550d3e1e4f7 100644
--- a/sim/mn10300/simops.c
+++ b/sim/mn10300/simops.c
@@ -2832,6 +2832,13 @@ void OP_F0FD (insn, extension)
 /* trap */
 void OP_F0FE (insn, extension)
      unsigned long insn, extension;
+{
+  abort ();
+}
+
+/* syscall */
+void OP_F0FF (insn, extension)
+     unsigned long insn, extension;
 {
   /* We use this for simulated system calls; we may need to change
      it to a reserved instruction if we conflict with uses at