diff --git a/tests/Makefile.am b/tests/Makefile.am
index a7f1b39a5e26a18e43de084e90a883417aa8dc09..52a64c9eb1d4636f93d356329d51ca39fa105db4 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -486,7 +486,6 @@ TESTS_ENVIRONMENT = \
   abs_top_srcdir=`cd '$(top_srcdir)'; pwd` \
   abs_builddir=$(abs_builddir) \
   abs_srcdir=$(abs_srcdir) \
-  CONFIG_HEADER="$(lv_abs_top_builddir)/config.h" \
   SHELL="$(SHELL)" \
   LIBVIRT_DRIVER_DIR="$(lv_abs_top_builddir)/src/.libs" \
   LIBVIRT_AUTOSTART=0 \