diff --git a/certs/test/include.am b/certs/test/include.am
index 1aaa1c0b8..3bcda40b4 100644
--- a/certs/test/include.am
+++ b/certs/test/include.am
@@ -7,6 +7,7 @@ EXTRA_DIST += \
          certs/test/cert-ext-ia.der \
          certs/test/cert-ext-nc.cfg \
          certs/test/cert-ext-nc.der \
+         certs/test/cert-ext-mnc.der \
          certs/test/cert-ext-nct.cfg \
          certs/test/cert-ext-nct.der \
          certs/test/cert-ext-ndir.cfg \