diff --git a/sim/m68hc11/ChangeLog b/sim/m68hc11/ChangeLog
index e83e11ebb7..0063e8e8b4 100644
--- a/sim/m68hc11/ChangeLog
+++ b/sim/m68hc11/ChangeLog
@@ -1,3 +1,7 @@
+2021-01-30  Mike Frysinger  <vapier@gentoo.org>
+
+	* dv-m68hc11tim.c (cycle_to_string): Change llu to PRIi64.
+
 2021-01-30  Mike Frysinger  <vapier@gentoo.org>
 
 	* m68hc11_sim.c (cpu_set_sp): Add static markings.
diff --git a/sim/m68hc11/dv-m68hc11tim.c b/sim/m68hc11/dv-m68hc11tim.c
index b0d032e19a..cd8274ffc3 100644
--- a/sim/m68hc11/dv-m68hc11tim.c
+++ b/sim/m68hc11/dv-m68hc11tim.c
@@ -503,7 +503,7 @@ cycle_to_string (sim_cpu *cpu, signed64 t, int flags)
   if (t < LONG_MAX)
     sprintf (buf, "%9lu%s%s", (unsigned long) t, cycle_buf, time_buf);
   else
-    sprintf (buf, "%llu%s%s", t, cycle_buf, time_buf);
+    sprintf (buf, "%" PRIi64 "%s%s", t, cycle_buf, time_buf);
   return buf;
 }