diff --git a/tests/test_regrid.py b/tests/test_regrid.py
index 7b8a2569..b2f65c35 100644
--- a/tests/test_regrid.py
+++ b/tests/test_regrid.py
@@ -438,6 +438,26 @@ def test_regrid(self):
         assert "lon_bnds" in output
         assert "time_bnds" in output
 
+    @pytest.mark.parametrize(
+        "name,value,attr_name",
+        [
+            ("periodic", True, "_periodic"),
+            ("extrap_method", "inverse_dist", "_extrap_method"),
+            ("extrap_method", "nearest_s2d", "_extrap_method"),
+            ("extrap_dist_exponent", 0.1, "_extrap_dist_exponent"),
+            ("extrap_num_src_pnts", 10, "_extrap_num_src_pnts"),
+            ("ignore_degenerate", False, "_ignore_degenerate"),
+        ],
+    )
+    def test_flags(self, name, value, attr_name):
+        ds = self.ds.copy()
+
+        options = {name: value}
+
+        regridder = xesmf.XESMFRegridder(ds, self.new_grid, "bilinear", **options)
+
+        assert getattr(regridder, attr_name) == value
+
     def test_no_variable(self):
         ds = self.ds.copy()
 
diff --git a/xcdat/regridder/xesmf.py b/xcdat/regridder/xesmf.py
index 13f40cff..ac57618d 100644
--- a/xcdat/regridder/xesmf.py
+++ b/xcdat/regridder/xesmf.py
@@ -124,6 +124,7 @@ def __init__(
         self._extrap_method = extrap_method
         self._extrap_dist_exponent = extrap_dist_exponent
         self._extrap_num_src_pnts = extrap_num_src_pnts
+        self._ignore_degenerate = ignore_degenerate
         self._regridder: xe.XESMFRegridder = None
         self._extra_options = options
 
@@ -178,6 +179,7 @@ def horizontal(self, data_var: str, ds: xr.Dataset) -> xr.Dataset:
                 extrap_method=self._extrap_method,
                 extrap_dist_exponent=self._extrap_dist_exponent,
                 extrap_num_src_pnts=self._extrap_num_src_pnts,
+                ignore_degenerate=self._ignore_degenerate,
                 **self._extra_options,
             )