diff --git a/external/unbound/config.h.cmake.in b/external/unbound/config.h.cmake.in
index 861020ec..9658c869 100644
--- a/external/unbound/config.h.cmake.in
+++ b/external/unbound/config.h.cmake.in
@@ -768,13 +768,6 @@
 #define _LARGEFILE_SOURCE 1
 #endif 
 
-
-
-
-#ifndef UNBOUND_DEBUG
-#  define NDEBUG
-#endif
-
 /** Use small-ldns codebase */
 #define USE_SLDNS 1
 #ifdef HAVE_SSL