diff --git a/configure b/configure
index 0d19d6538..3096c9982 100755
--- a/configure
+++ b/configure
@@ -20085,8 +20085,6 @@ if test "$ac_res" != no; then :
 fi
 
 
-        LIBS="$LIBS $DNSTAP_LIBS"
-        CFLAGS="$CFLAGS $DNSTAP_CFLAGS"
 
 $as_echo "#define USE_DNSTAP 1" >>confdefs.h
 
diff --git a/configure.ac b/configure.ac
index a5a4e43b9..26e8abcc2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1098,8 +1098,6 @@ fi
 # check for dnstap if requested
 dt_DNSTAP([$UNBOUND_RUN_DIR/dnstap.sock],
     [
-        LIBS="$LIBS $DNSTAP_LIBS"
-        CFLAGS="$CFLAGS $DNSTAP_CFLAGS"
         AC_DEFINE([USE_DNSTAP], [1], [Define to 1 to enable dnstap support])
         AC_SUBST([ENABLE_DNSTAP], [1])