diff --git a/lib/birdlib.h b/lib/birdlib.h
index 428b3209..18824fb0 100644
--- a/lib/birdlib.h
+++ b/lib/birdlib.h
@@ -151,11 +151,7 @@ void debug(const char *msg, ...);	/* Printf to debug output */
 #define DBG(x, y...) do { } while(0)
 #endif
 
-#ifdef DEBUGGING
 #define ASSERT(x) do { if (!(x)) bug("Assertion '%s' failed at %s:%d", #x, __FILE__, __LINE__); } while(0)
-#else
-#define ASSERT(x) do { if (!(x)) log(L_BUG "Assertion '%s' failed at %s:%d", #x, __FILE__, __LINE__); } while(0)
-#endif
 
 /* Pseudorandom numbers */