diff --git a/src/sys/lib/strtol.c b/src/sys/lib/strtol.c
index 8d936b5..4c4ea00 100644
--- a/src/sys/lib/strtol.c
+++ b/src/sys/lib/strtol.c
@@ -13,7 +13,7 @@
 {
 	const char *s;
 	unsigned long acc;
-	char c;
+	char c = 0x0;  // to remove warning
 	unsigned long cutoff;
 	int neg, any, cutlim;