X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/charset/blobdiff_plain/2780033c4a0de98250091a54a3a3edde6da461fc..273ef1a19b9f44a1dbe4365e66d854879415ff5a:/emacsenc.c

diff --git a/emacsenc.c b/emacsenc.c
index f1046bb..ac49939 100644
--- a/emacsenc.c
+++ b/emacsenc.c
@@ -118,7 +118,7 @@ int charset_from_emacsenc(const char *name)
 	p = name;
 	q = emacsencs[i].name;
 	while (*p || *q) {
-	    if (tolower(*p) != tolower(*q))
+		if (tolower((unsigned char)*p) != tolower((unsigned char)*q))
 		break;
 	    p++; q++;
 	}