diff --git a/openbox/client.c b/openbox/client.c
index 4b65b0d0..3244b507 100644
--- a/openbox/client.c
+++ b/openbox/client.c
@@ -2099,7 +2099,7 @@ gboolean client_focus(Client *self)
 void client_unfocus(Client *self)
 {
     g_assert(focus_client == self);
-#ifndef DEBUG_FOCUS
+#ifdef DEBUG_FOCUS
     g_message("client_unfocus");
 #endif
     focus_fallback(Fallback_Unfocusing);