diff --git a/.gitmodules b/.gitmodules
index 258c1268e8f96ed3634ca8ad8ddd1511cc769c6d..5776431e6b04f89739ebd368e8d71dc2e2c0c4f4 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "Tables/source_tables/obs4MIPs-cmor-tables"]
 	path = Tables/source_tables/obs4MIPs-cmor-tables
 	url = https://github.com/PCMDI/obs4MIPs-cmor-tables.git
+[submodule "Tables/source_tables/cmip6-cmor-tables"]
+	path = Tables/source_tables/cmip6-cmor-tables
+	url = https://github.com/PCMDI/cmip6-cmor-tables.git
diff --git a/Tables/source_tables/cmip6-cmor-tables b/Tables/source_tables/cmip6-cmor-tables
new file mode 160000
index 0000000000000000000000000000000000000000..9b0b36d38c07b746159cadbc920bc7251278696e
--- /dev/null
+++ b/Tables/source_tables/cmip6-cmor-tables
@@ -0,0 +1 @@
+Subproject commit 9b0b36d38c07b746159cadbc920bc7251278696e