X-Git-Url: http://lists.indexdata.com/cgi-bin?a=blobdiff_plain;f=src%2Fcharsets.c;h=35dd611c2463d8d61964e288f06147f7fc4ed6df;hb=49088b6680bed3c069be10ff0cb7cc16f3733729;hp=b2470bd9be7a5bfaf7ed65abfca9788cdf9e230d;hpb=6518f2160a4dfcd5e521f9beb3310ad16c5acf05;p=pazpar2-moved-to-github.git

diff --git a/src/charsets.c b/src/charsets.c
index b2470bd..35dd611 100644
--- a/src/charsets.c
+++ b/src/charsets.c
@@ -182,7 +182,7 @@ static const char *pp2_relevance_token_a_to_z(pp2_relevance_token_t prt)
     int c;
 
     /* skip white space */
-    while (*cp && (c = raw_char(tolower(*cp))) < 0)
+    while (*cp && (c = raw_char(tolower(*(const unsigned char *)cp))) < 0)
         cp++;
     if (*cp == '\0')
     {