diff --git a/test/unit/Filelists.cmake b/test/unit/Filelists.cmake
index a1eb123e..e1f40bc9 100644
--- a/test/unit/Filelists.cmake
+++ b/test/unit/Filelists.cmake
@@ -21,6 +21,7 @@ set(LWIP_TESTFILES
 	${LWIP_TESTDIR}/dhcp/test_dhcp.c
 	${LWIP_TESTDIR}/etharp/test_etharp.c
 	${LWIP_TESTDIR}/ip4/test_ip4.c
+	${LWIP_TESTDIR}/ip6/test_ip6.c
 	${LWIP_TESTDIR}/mdns/test_mdns.c
 	${LWIP_TESTDIR}/mqtt/test_mqtt.c
 	${LWIP_TESTDIR}/tcp/tcp_helper.c
diff --git a/test/unit/Filelists.mk b/test/unit/Filelists.mk
index 49f7bdee..4b770782 100644
--- a/test/unit/Filelists.mk
+++ b/test/unit/Filelists.mk
@@ -41,6 +41,7 @@ TESTFILES=$(TESTDIR)/lwip_unittests.c \
 	$(TESTDIR)/dhcp/test_dhcp.c \
 	$(TESTDIR)/etharp/test_etharp.c \
 	$(TESTDIR)/ip4/test_ip4.c \
+	$(TESTDIR)/ip6/test_ip6.c \
 	$(TESTDIR)/mdns/test_mdns.c \
 	$(TESTDIR)/mqtt/test_mqtt.c \
 	$(TESTDIR)/tcp/tcp_helper.c \