diff --git a/src/compton.c b/src/compton.c
index ec482e4..7b4e1cb 100644
--- a/src/compton.c
+++ b/src/compton.c
@@ -802,12 +802,13 @@ restack_win(session_t *ps, win *w, xcb_window_t new_above) {
 void
 configure_win(session_t *ps, xcb_configure_notify_event_t *ce) {
   // On root window changes
-  auto root_change_fn = backend_list[ps->o.backend]->root_change;
+  auto bi = backend_list[ps->o.backend];
   if (ce->window == ps->root) {
     if (ps->o.experimental_backends) {
-      if (!root_change_fn) {
+      assert(bi);
+      if (!bi->root_change) {
         // deinit/reinit backend if the backend cannot handle root change
-        backend_list[ps->o.backend]->deinit(ps->backend_data, ps);
+        bi->deinit(ps->backend_data, ps);
 	ps->backend_data = NULL;
       }
     } else {
@@ -848,10 +849,10 @@ configure_win(session_t *ps, xcb_configure_notify_event_t *ce) {
       glx_on_root_change(ps);
 #endif
     if (ps->o.experimental_backends) {
-      if (root_change_fn) {
-        root_change_fn(ps->backend_data, ps);
+      if (bi->root_change) {
+        bi->root_change(ps->backend_data, ps);
       } else {
-        ps->backend_data = backend_list[ps->o.backend]->init(ps);
+        ps->backend_data = bi->init(ps);
       }
     }
     force_repaint(ps);
diff --git a/src/config.h b/src/config.h
index 0f31c56..5aca245 100644
--- a/src/config.h
+++ b/src/config.h
@@ -292,13 +292,13 @@ static inline attr_const enum backend parse_backend(const char *str) {
 	}
 	// Keep compatibility with an old revision containing a spelling mistake...
 	if (!strcasecmp(str, "xr_glx_hybird")) {
-		log_warn("backend xr_glx_hybird should be xr_glx_hybrid, the misspelt"
+		log_warn("backend xr_glx_hybird should be xr_glx_hybrid, the misspelt "
 		         "version will be removed soon.");
 		return BKEND_XR_GLX_HYBRID;
 	}
 	// cju wants to use dashes
 	if (!strcasecmp(str, "xr-glx-hybrid")) {
-		log_warn("backend xr-glx-hybrid should be xr_glx_hybrid, the alternative"
+		log_warn("backend xr-glx-hybrid should be xr_glx_hybrid, the alternative "
 		         "version will be removed soon.");
 		return BKEND_XR_GLX_HYBRID;
 	}