diff --git a/lung_cancer_screening/questions/forms/smoked_total_years_form.py b/lung_cancer_screening/questions/forms/smoked_total_years_form.py
index 14b78c74..c3423825 100644
--- a/lung_cancer_screening/questions/forms/smoked_total_years_form.py
+++ b/lung_cancer_screening/questions/forms/smoked_total_years_form.py
@@ -93,14 +93,14 @@ def min_value_error_message(self):
     def normal_greater_than_years_smoked_error_message(self):
         return (
             f"The number of years you smoked {self.presenter.human_type().lower()} "
-            "must equal to, or fewer than, the total number of years you smoked"
+            "must be equal to, or fewer than, the total number of years you smoked"
         )
 
 
     def changed_greater_than_years_smoked_error_message(self):
         return (
             f"The number of years you smoked {self.presenter.to_sentence()} "
-            "must equal to, or fewer than, the total number of years you have been smoking"
+            "must be equal to, or fewer than, the total number of years you have been smoking"
         )
 
 
diff --git a/lung_cancer_screening/questions/tests/unit/forms/test_smoked_total_years_form.py b/lung_cancer_screening/questions/tests/unit/forms/test_smoked_total_years_form.py
index 219b65b0..47f4ecd8 100644
--- a/lung_cancer_screening/questions/tests/unit/forms/test_smoked_total_years_form.py
+++ b/lung_cancer_screening/questions/tests/unit/forms/test_smoked_total_years_form.py
@@ -229,7 +229,7 @@ def test_greater_than_years_smoked_for_normal_level(self):
         )
         self.assertFalse(form.is_valid())
         self.assertIn(
-            "The number of years you smoked cigarettes must equal to, or fewer than, the total number of years you smoked",
+            "The number of years you smoked cigarettes must be equal to, or fewer than, the total number of years you smoked",
             form.errors["value"]
         )
 
@@ -256,6 +256,6 @@ def test_greater_than_years_smoked_for_a_changed_level(self):
         )
         self.assertFalse(form.is_valid())
         self.assertIn(
-            "The number of years you smoked 200 cigarettes a week must equal to, or fewer than, the total number of years you have been smoking",
+            "The number of years you smoked 200 cigarettes a week must be equal to, or fewer than, the total number of years you have been smoking",
             form.errors["value"]
         )