diff --git a/src/handlers.c b/src/handlers.c
index 38c2caf1..2c81939c 100644
--- a/src/handlers.c
+++ b/src/handlers.c
@@ -1441,7 +1441,7 @@ static void property_notify(uint8_t state, xcb_window_t window, xcb_atom_t atom)
     struct property_handler_t *handler = NULL;
     xcb_get_property_reply_t *propr = NULL;
 
-    for (size_t c = 0; c < sizeof(property_handlers) / sizeof(struct property_handler_t); c++) {
+    for (size_t c = 0; c < NUM_HANDLERS; c++) {
         if (property_handlers[c].atom != atom)
             continue;