diff --git a/src/pykrige/ok.py b/src/pykrige/ok.py
index 2eb0a7a..b2bc129 100644
--- a/src/pykrige/ok.py
+++ b/src/pykrige/ok.py
@@ -583,6 +583,7 @@ def get_variogram_points(self):
         """
         return (
             self.lags,
+            self.semivariance,
             self.variogram_function(self.variogram_model_parameters, self.lags),
         )