diff --git a/openmc/model/model.py b/openmc/model/model.py
index 45cbf82271..3e0422eb1e 100644
--- a/openmc/model/model.py
+++ b/openmc/model/model.py
@@ -740,7 +740,7 @@ class Model:
 
         if len(self.settings.volume_calculations) == 0:
             # Then there is no volume calculation specified
-            raise ValueError("The Settings.volume_calculation attribute must"
+            raise ValueError("The Settings.volume_calculations attribute must"
                              " be specified before executing this method!")
 
         with _change_directory(Path(cwd)):