diff --git a/tests/Makefile.am b/tests/Makefile.am
index 0d48c75..dfdb086 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -14,6 +14,10 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
+AM_TESTS_ENVIRONMENT = \
+	PATH="$(top_srcdir)/third_party/cram/scripts:$$PATH" \
+	PYTHONPATH="$(top_srcdir)/third_party/cram:$$PYTHONPATH"
+
 TESTS = test_run.sh
 
 test_SCRIPTS = test_run.sh