diff --git a/test-suite/tests/interp.test b/test-suite/tests/interp.test
index 5f3e2aaf7..7497094a8 100644
--- a/test-suite/tests/interp.test
+++ b/test-suite/tests/interp.test
@@ -16,6 +16,9 @@
 ;;;; License along with this library; if not, write to the Free Software
 ;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
+(define-module (test-suite test-interp)
+  #:use-module (test-suite lib))
+
 (pass-if "Internal defines 1"
 	 (letrec ((foo (lambda (arg)
 			 (or arg (and (procedure? foo)