diff --git a/database_cleanup/model/purge_columns.py b/database_cleanup/model/purge_columns.py
index 6efc3094f..5266ab160 100644
--- a/database_cleanup/model/purge_columns.py
+++ b/database_cleanup/model/purge_columns.py
@@ -103,7 +103,7 @@ class CleanupPurgeWizardColumn(orm.TransientModel):
 
     def find(self, cr, uid, context=None):
         """
-        Search for columns that cannot be instanciated.
+        Search for columns that are not in the corresponding model.
         """
         res = []
         model_pool = self.pool['ir.model']
diff --git a/database_cleanup/model/purge_models.py b/database_cleanup/model/purge_models.py
index f2a1dda09..42e174031 100644
--- a/database_cleanup/model/purge_models.py
+++ b/database_cleanup/model/purge_models.py
@@ -76,7 +76,7 @@ class CleanupPurgeWizardModel(orm.TransientModel):
 
     def find(self, cr, uid, context=None):
         """
-        Search for models that cannot be instanciated.
+        Search for models that cannot be instantiated.
         """
         res = []
         cr.execute("SELECT model from ir_model")