1 files changed, 2 insertions, 2 deletions
diff --git a/src/rc/rc-misc.c b/src/rc/rc-misc.c
index 79db4323..3cfbe175 100644
--- a/src/rc/rc-misc.c
+++ b/src/rc/rc-misc.c
@@ -82,8 +82,8 @@ char *rc_conf_value (const char *setting)
 		STRLIST_FOREACH (rc_conf, line, i) {
 			char *p = line;
 			while (p && *p && *p != '=') {
-				if (isupper (*p))
-					*p = tolower (*p);
+				if (isupper ((int) *p))
+					*p = tolower ((int) *p);
 				p++;
 			}
 		}