diff --git a/doc/installing.rst b/doc/installing.rst
index 75d79c296bc..3af330f3df9 100644
--- a/doc/installing.rst
+++ b/doc/installing.rst
@@ -24,7 +24,7 @@ For netCDF and IO
   reading and writing netCDF4 files that does not use the netCDF-C libraries
 - `pynio <https://www.pyngl.ucar.edu/Nio.shtml>`__: for reading GRIB and other
   geoscience specific file formats
-- `zarr <http://zarr.readthedocs.io/`__: for chunked, compressed, N-dimensional arrays.
+- `zarr <http://zarr.readthedocs.io/>`__: for chunked, compressed, N-dimensional arrays.
 
 For accelerating xarray
 ~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/xarray/util/print_versions.py b/xarray/util/print_versions.py
index 095c7add84d..1b25583197f 100755
--- a/xarray/util/print_versions.py
+++ b/xarray/util/print_versions.py
@@ -75,9 +75,11 @@ def show_versions(as_json=False):
         # ("pydap", lambda mod: mod.version.version),
         ("h5netcdf", lambda mod: mod.__version__),
         ("Nio", lambda mod: mod.__version__),
+        ("zarr", lambda mod: mod.__version__),
         ("bottleneck", lambda mod: mod.__version__),
         ("cyordereddict", lambda mod: mod.__version__),
         ("dask", lambda mod: mod.__version__),
+        ("distributed", lambda mod: mod.__version__),
         ("matplotlib", lambda mod: mod.__version__),
         ("cartopy", lambda mod: mod.__version__),
         ("seaborn", lambda mod: mod.__version__),