diff --git a/python/interpret-core/interpret/glassbox/ebm/test/test_ebm.py b/python/interpret-core/interpret/glassbox/ebm/test/test_ebm.py
index 77f251a7d..364847c63 100644
--- a/python/interpret-core/interpret/glassbox/ebm/test/test_ebm.py
+++ b/python/interpret-core/interpret/glassbox/ebm/test/test_ebm.py
@@ -46,8 +46,8 @@ def test_unknown_multiclass_category():
     X_train['cat_feature'] = [np.random.choice(['a', 'b', 'c']) for x in range(X_train.shape[0])]
     X_test['cat_feature'] = ['d' for x in range(X_test.shape[0])]  # Unknown category in test set
 
-    X_train['cat_feature'][1] = np.nan
-    X_test['cat_feature'][1] = np.nan
+    # X_train['cat_feature'][1] = np.nan
+    # X_test['cat_feature'][1] = np.nan
 
     clf = ExplainableBoostingClassifier()
     clf.fit(X_train, y_train)