diff --git a/examples/standalone/timer.c b/examples/standalone/timer.c
index 6628b21..834cc9a 100644
--- a/examples/standalone/timer.c
+++ b/examples/standalone/timer.c
@@ -115,7 +115,7 @@
 
 static char *usage = "\n[q, b, e, ?] ";
 
-int timer (int argc, char *argv[])
+int timer (int argc, char * const argv[])
 {
 	cpmtimer8xx_t *cpmtimerp;	/* Pointer to the CPM Timer structure   */
 	tid_8xx_cpmtimer_t hw;