diff --git a/sim/mn10300/ChangeLog b/sim/mn10300/ChangeLog
index dbb5b6d5ac7..1f5753feaaf 100644
--- a/sim/mn10300/ChangeLog
+++ b/sim/mn10300/ChangeLog
@@ -1,3 +1,7 @@
+2021-05-29  Mike Frysinger  <vapier@gentoo.org>
+
+	* interp.c [!SIGTRAP] (SIGTRAP): Define to 5.
+
 2021-05-17  Mike Frysinger  <vapier@gentoo.org>
 
 	* sim-main.h (SIM_HAVE_COMMON_SIM_STATE): Delete.
diff --git a/sim/mn10300/interp.c b/sim/mn10300/interp.c
index b6c5d5b087e..541d4b14668 100644
--- a/sim/mn10300/interp.c
+++ b/sim/mn10300/interp.c
@@ -464,6 +464,9 @@ mn10300_cpu_exception_resume(SIM_DESC sd, sim_cpu* cpu, int exception)
 
   if(exception == 0 && State.exc_suspended > 0)
     {
+#ifndef SIGTRAP
+# define SIGTRAP 5
+#endif
       if(State.exc_suspended != SIGTRAP) /* warn not for breakpoints */
          sim_io_eprintf(sd, "Warning, resuming but ignoring pending exception signal (%d)\n",
   		       State.exc_suspended);