i3String *i3string_escape_markup(i3String *str) {
#if PANGO_SUPPORT
const char *text = i3string_as_utf8(str);
- return i3string_from_utf8(g_markup_escape_text(text, -1));
+ char *escaped = g_markup_escape_text(text, -1);
+ i3String *result = i3string_from_utf8(escaped);
+ free(escaped);
+ return result;
#else
return str;
#endif