diff --git a/src/ncbuf.c b/src/ncbuf.c
index 5b661f4c4..a96cf598e 100644
--- a/src/ncbuf.c
+++ b/src/ncbuf.c
@@ -15,7 +15,7 @@
 #include <haproxy/list.h>
 #endif /* STANDALONE */
 
-#ifdef DEBUG_DEV
+#ifdef DEBUG_STRICT
 # include <haproxy/bug.h>
 #else
 # include <stdio.h>