diff --git a/config2.h.in b/config2.h.in
index fa834ee8..63a5b588 100644
--- a/config2.h.in
+++ b/config2.h.in
@@ -306,9 +306,6 @@
 /* Define if you have _beginthread() */
 #mesondefine HAVE_BEGINTHREAD
 
-/* Define to 1 if you have the <bzlib.h> header file. */
-#mesondefine HAVE_BZLIB_H
-
 /* Define if you have C99 compliant vsnprintf() */
 #mesondefine HAVE_C99_VSNPRINTF