diff --git a/modAL/multilabel.py b/modAL/multilabel.py
index c908674..485f72c 100644
--- a/modAL/multilabel.py
+++ b/modAL/multilabel.py
@@ -223,6 +223,7 @@ def max_score(classifier: OneVsRestClassifier, X_pool: modALinput,
 
     classwise_confidence = classifier.predict_proba(X_pool)
     classwise_predictions = classifier.predict(X_pool)
+    classwise_predictions = classwise_predictions[:,None,:]
     classwise_scores = classwise_confidence*(classwise_predictions - 1/2)
     classwise_max = np.max(classwise_scores, axis=1)