--- a/src/server/config/mimeconf.c	Sat Oct 17 18:07:04 2015 +0200
+++ b/src/server/config/mimeconf.c	Sat Oct 17 21:17:34 2015 +0200
@@ -83,7 +83,7 @@
         } else if(!sstrcmp(param->name, sstr("exts"))) {
             // comma-separated file extensions
             
-            size_t nx = 0;
+            ssize_t nx = 0;
             sstr_t *exts = sstrsplit(param->value, sstrn(",", 1), &nx);
             for(int i=0;i<nx;i++) {
                 sstr_t extstr = sstrdup_a(mp, exts[i]);