commit - 7ebab7533a8959c79c52d338f1780636aa49b838
commit + fb5f99d935cc298e7d142953efbc1e9982f26f19
blob - 533632a837196d47f2484f56eeb241c9a9ddcc3b
blob + 979d4c6e5653e14ffd78f1f1267cec18fccd2c7f
--- dwm.c
+++ dwm.c
XGetClassHint(dpy, c->win, &ch);
for(i = 0; i < LENGTH(rules); i++) {
r = &rules[i];
- if(strstr(c->name, r->title)
+ if(r->title && strstr(c->name, r->title)
|| (ch.res_class && r->class && strstr(ch.res_class, r->class))
|| (ch.res_name && r->instance && strstr(ch.res_name, r->instance)))
{