@@ -40,11 +40,12 @@
 	if ((ret_c = malloc((length * 3) + 1)) == NULL)
 		@throw [OFOutOfMemoryException newWithClass: isa
 						    andSize: (length * 3) + 1];
 
 	for (i = 0; *s != '\0'; s++) {
-		if (isalnum(*s) || *s == '-' || *s == '_' || *s == '.')
+		if (isalnum(*s) || *s == '-' || *s == '_' || *s == '.' ||
+		    *s == '~')
 			ret_c[i++] = *s;
 		else {
 			char buf[3];
 			snprintf(buf, 3, "%02X", *s);
 			ret_c[i++] = '%';