diff --git a/engine.go b/engine.go
index 5a83df7a..c80ff9ba 100755
--- a/engine.go
+++ b/engine.go
@@ -410,7 +410,7 @@ func (engine *Engine) internalIndexDoc(docId string, data types.DocData,
 		atomic.AddUint64(&engine.numForceUpdatingReqs, 1)
 	}
 
-	hash := murmur.Sum32(fmt.Sprintf("%s%s", docId, data.Content))
+	hash := murmur.Sum32(docId)
 	engine.segmenterChan <- segmenterReq{
 		docId: docId, hash: hash, data: data, forceUpdate: forceUpdate}
 }
diff --git a/engine_test.go b/engine_test.go
index 398ca5ca..14c69877 100755
--- a/engine_test.go
+++ b/engine_test.go
@@ -199,10 +199,10 @@ func TestFrequenciesIndex(t *testing.T) {
 	tt.Expect(t, "2", len(outDocs))
 
 	tt.Expect(t, "1", outDocs[0].DocId)
-	tt.Expect(t, "2374", int(outDocs[0].Scores[0]*1000))
+	tt.Expect(t, "2387", int(outDocs[0].Scores[0]*1000))
 
 	tt.Expect(t, "5", outDocs[1].DocId)
-	tt.Expect(t, "2133", int(outDocs[1].Scores[0]*1000))
+	tt.Expect(t, "2205", int(outDocs[1].Scores[0]*1000))
 
 	engine.Close()
 }
@@ -706,7 +706,7 @@ func TestSearchNotUseGse(t *testing.T) {
 	tt.Expect(t, "2", len(outDocs))
 
 	tt.Expect(t, "8", outDocs[0].DocId)
-	tt.Expect(t, "3736", int(outDocs[0].Scores[0]*1000))
+	tt.Expect(t, "3999", int(outDocs[0].Scores[0]*1000))
 	tt.Expect(t, "[]", outDocs[0].TokenSnippetLocs)
 
 	outputs1 := engine1.Search(types.SearchReq{
diff --git a/riot_test.go b/riot_test.go
index a7c48d59..e6192296 100644
--- a/riot_test.go
+++ b/riot_test.go
@@ -40,11 +40,11 @@ func TestEngineIndexWithNewStore(t *testing.T) {
 	tt.Expect(t, "2", len(outDocs))
 
 	// tt.Expect(t, "2", outDocs[0].DocId)
-	tt.Expect(t, "2500", int(outDocs[0].Scores[0]*1000))
+	tt.Expect(t, "2531", int(outDocs[0].Scores[0]*1000))
 	tt.Expect(t, "[]", outDocs[0].TokenSnippetLocs)
 
 	// tt.Expect(t, "1", outDocs[1].DocId)
-	tt.Expect(t, "2215", int(outDocs[1].Scores[0]*1000))
+	tt.Expect(t, "2000", int(outDocs[1].Scores[0]*1000))
 	tt.Expect(t, "[]", outDocs[1].TokenSnippetLocs)
 
 	engine1.Close()