diff --git a/.zenodo.json b/.zenodo.json
index 8c63ee1..233162f 100644
--- a/.zenodo.json
+++ b/.zenodo.json
@@ -72,6 +72,11 @@
             "affiliation": "Netherlands eScience Center",
             "name": "Verhoeven, Stefan",
             "orcid": "0000-0002-5821-2060"
+        },
+        {
+            "affiliation": "Environment and Climate Change Canada",
+            "name": "Malinina, Elizaveta",
+            "orcid": "0000-0002-4102-2877"
         }
     ],
     "description": "A command line interface to download ERA5 data from the Climate Data Store.\n",
diff --git a/CITATION.cff b/CITATION.cff
index dc47990..1df530f 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -77,6 +77,11 @@ authors:
     family-names: Verhoeven
     given-names: Stefan
     orcid: https://orcid.org/0000-0002-5821-2060
+  -
+    affiliation: "Environment and Climate Change Canada"
+    family-names: Malinina
+    given-names: Elizaveta
+    orcid: https://orcid.org/0000-0002-4102-2877
 
 cff-version: 1.2.0
 date-released: 2021-11-30
diff --git a/era5cli/cli.py b/era5cli/cli.py
index f7cb0d7..13f6c23 100644
--- a/era5cli/cli.py
+++ b/era5cli/cli.py
@@ -148,7 +148,8 @@ def _build_parser():
                              Whether to download the preliminary back extension
                              (1950-1978). Note that when `--prelimbe` is used,
                              `--startyear` and `--endyear` should be set
-                             between 1950 and 1978.
+                             between 1950 and 1978. Please, be aware that
+                             ERA5 data is available from 1959.
                              `--prelimbe` is incompatible with `--land`.
 
                              ''')
@@ -159,7 +160,7 @@ def _build_parser():
         help=textwrap.dedent('''\
                              Whether to download data from the ERA5-Land
                              dataset. Note that the ERA5-Land dataset starts in
-                             1981.
+                             1950.
                              `--land` is incompatible with the use of
                              `--prelimbe` and `--ensemble`.
 
@@ -343,12 +344,12 @@ def _construct_year_list(args):
                 'year should be between 1950 and 1978'
             )
         elif args.land:
-            assert 1981 <= year <= datetime.now().year, (
-                'for ERA5-Land, year should be between 1981 and present'
+            assert 1950 <= year <= datetime.now().year, (
+                'for ERA5-Land, year should be between 1950 and present'
             )
         else:
-            assert 1979 <= year <= datetime.now().year, (
-                'year should be between 1979 and present'
+            assert 1959 <= year <= datetime.now().year, (
+                'year should be between 1959 and present'
             )
 
     assert endyear >= args.startyear, (
diff --git a/era5cli/fetch.py b/era5cli/fetch.py
index ad3883c..57d0198 100644
--- a/era5cli/fetch.py
+++ b/era5cli/fetch.py
@@ -387,7 +387,8 @@ def _build_name(self, variable):
         if self.prelimbe:
             if self.land:
                 raise ValueError(
-                    "Back extension not (yet) available for ERA5-Land.")
+                    "Back extension not available for ERA5-Land. "
+                    "ERA5-Land data is available from 1950 on.")
             name += "-preliminary-back-extension"
         return name, variable
 
diff --git a/tests/test_cli.py b/tests/test_cli.py
index 1184ed1..e4e5155 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -138,7 +138,7 @@ def test_main_fetch(fetch):
         assert cli._execute(args)
 
     # should give an AssertionError if years are out of bounds
-    argv = ['hourly', '--startyear', '1950',
+    argv = ['hourly', '--startyear', '1949',
             '--variables', 'total_precipitation', '--statistics',
             '--endyear', '2007', '--ensemble']
     args = cli._parse_args(argv)
@@ -160,14 +160,6 @@ def test_main_fetch(fetch):
     args = cli._parse_args(argv)
     cli._execute(args)
 
-    # no land available for back extension
-    argv = ['monthly', '--startyear', '1980', '--endyear', '1980',
-            '--variables', 'total_precipitation', '--synoptic',
-            '--ensemble', '--land']
-    args = cli._parse_args(argv)
-    with pytest.raises(AssertionError):
-        cli._execute(args)
-
 
 @mock.patch("era5cli.info.Info", autospec=True)
 def test_main_info(info):