diff --git a/esmvalcore/cmor/_fixes/cmip6/awi_esm_1_1_lr.py b/esmvalcore/cmor/_fixes/cmip6/awi_esm_1_1_lr.py
new file mode 100644
index 0000000000..2c53d38fb4
--- /dev/null
+++ b/esmvalcore/cmor/_fixes/cmip6/awi_esm_1_1_lr.py
@@ -0,0 +1,29 @@
+"""Fixes for AWI-ESM-1-1-LR model."""
+from ..fix import Fix
+
+
+class AllVars(Fix):
+    """Fixes for all vars."""
+
+    def fix_metadata(self, cubes):
+        """Fix parent time units.
+
+        Parameters
+        ----------
+        cubes : iris.cube.CubeList
+            Input cubes.
+
+        Returns
+        -------
+        iris.cube.CubeList
+        """
+        parent_units = 'parent_time_units'
+        bad_value = 'days since 0000-01-01 00:00:00'
+        for cube in cubes:
+            try:
+                if cube.attributes[parent_units] == bad_value:
+                    cube.attributes[parent_units] = 'days since 0001-01-01 ' \
+                        + '00:00:00'
+            except AttributeError:
+                pass
+        return cubes
diff --git a/tests/integration/cmor/_fixes/cmip6/test_awi_esm_1_1_lr.py b/tests/integration/cmor/_fixes/cmip6/test_awi_esm_1_1_lr.py
new file mode 100644
index 0000000000..eba75631e2
--- /dev/null
+++ b/tests/integration/cmor/_fixes/cmip6/test_awi_esm_1_1_lr.py
@@ -0,0 +1,38 @@
+"""Tests for the fixes of AWI-ESM-1-1-LR."""
+import iris
+import pytest
+
+from esmvalcore.cmor._fixes.cmip6.awi_esm_1_1_lr import AllVars
+from esmvalcore.cmor.fix import Fix
+
+
+@pytest.fixture
+def sample_cubes():
+    ta_cube = iris.cube.Cube([1.0], var_name='ta')
+    tas_cube = iris.cube.Cube([3.0], var_name='tas')
+    return iris.cube.CubeList([ta_cube, tas_cube])
+
+
+def test_get_tas_fix():
+    fix = Fix.get_fixes('CMIP6', 'AWI-ESM-1-1-LR', 'Amon', 'tas')
+    assert fix == [AllVars(None)]
+
+
+def test_allvars_fix_metadata(sample_cubes):
+    for cube in sample_cubes:
+        cube.attributes['parent_time_units'] = 'days since 0001-01-01 00:00:00'
+    out_cubes = AllVars(None).fix_metadata(sample_cubes)
+    assert out_cubes is sample_cubes
+    for cube in out_cubes:
+        assert cube.attributes[
+            'parent_time_units'] == 'days since 0001-01-01 00:00:00'
+
+
+def test_allvars_no_need_tofix_metadata(sample_cubes):
+    for cube in sample_cubes:
+        cube.attributes['parent_time_units'] = 'days since 0001-01-01 00:00:00'
+    out_cubes = AllVars(None).fix_metadata(sample_cubes)
+    assert out_cubes is sample_cubes
+    for cube in out_cubes:
+        assert cube.attributes[
+            'parent_time_units'] == 'days since 0001-01-01 00:00:00'