diff --git a/src/alloc.c b/src/alloc.c
index e5134950a1a..67731ea1b0d 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -143,10 +143,6 @@ Lisp_Object memory_signal_data;
 #define DONT_COPY_FLAG 1
 #endif /* no DONT_COPY_FLAG  */
 
-#if DONT_COPY_FLAG == MARKBIT
-you lose
-#endif
-
 /* Buffer in which we save a copy of the C stack at each GC.  */
 
 char *stack_copy;