--- fcoe-utils-1.0.33.orig/fcnsq.c	2020-08-20 09:43:36.227637286 +0000
+++ fcoe-utils-1.0.33/fcnsq.c	2020-08-20 09:43:50.307246472 +0000
@@ -381,7 +381,7 @@ int main(int argc, char *argv[])
 	u64 wwnn = 0;
 	int rc = 0;
 	enum commands cmd = 0;
-	char c;
+	signed char c;
 	uintmax_t wwnn_tmp = 0;
 
 	while(1) {