1 files changed, 1 insertions, 1 deletions
diff --git a/core/src/main/java/org/elasticsearch/common/lucene/search/function/WeightFactorFunction.java b/core/src/main/java/org/elasticsearch/common/lucene/search/function/WeightFactorFunction.java
index 44c6245a81..c69a5efdd5 100644
--- a/core/src/main/java/org/elasticsearch/common/lucene/search/function/WeightFactorFunction.java
+++ b/core/src/main/java/org/elasticsearch/common/lucene/search/function/WeightFactorFunction.java
@@ -52,7 +52,7 @@ public class WeightFactorFunction extends ScoreFunction {
         final LeafScoreFunction leafFunction = scoreFunction.getLeafScoreFunction(ctx);
         return new LeafScoreFunction() {
             @Override
-            public double score(int docId, float subQueryScore) {
+            public double score(int docId, float subQueryScore) throws IOException {
                 return leafFunction.score(docId, subQueryScore) * getWeight();
             }