1 files changed, 1 insertions, 1 deletions
diff --git a/src/main.c b/src/main.c
index c2c7170eb..1d93b69fc 100644
--- a/src/main.c
+++ b/src/main.c
@@ -154,7 +154,7 @@ sigstop(void)
   kill(0, SIGSTOP); /* issue SIGSTOP */
 }
 
-#ifdef DEBUG
+#ifndef NDEBUG
 void 
 D(char *format, ...)
 {