diff --git a/dash/trap.c b/dash/trap.c
index 7764f2b..a963472 100644
--- a/dash/trap.c
+++ b/dash/trap.c
@@ -377,7 +377,6 @@
 int decode_signal(const char *string, int minsig)
 {
 	int i;
-	char *ep;
 
 	if (is_number(string)) {
 		i = atoi(string);