diff --git a/query/query.go b/query/query.go
index 288ffc3741c..a9c3c08e9ce 100644
--- a/query/query.go
+++ b/query/query.go
@@ -1918,7 +1918,7 @@ func ProcessGraph(ctx context.Context, sg, parent *SubGraph, rch chan error) {
 				return
 			}
 
-			curVal := types.Val{Tid: types.IntID, Value: int64(len(sg.SrcUIDs.Uids))}
+			curVal := types.Val{Tid: types.IntID, Value: int64(len(sg.DestUIDs.Uids))}
 			if types.CompareVals(sg.SrcFunc.Name, curVal, dst) {
 				sg.DestUIDs.Uids = sg.SrcUIDs.Uids
 			} else {
diff --git a/query/query0_test.go b/query/query0_test.go
index 9283b7c1a08..947ac6198b3 100644
--- a/query/query0_test.go
+++ b/query/query0_test.go
@@ -1752,15 +1752,25 @@ func TestFilterUsingLenFunction(t *testing.T) {
 		{
 			"Eq length should return empty results",
 			`{
-			    var(func: has(school), first: 3) {
-			        f as uid
-			    }
-
-			    me(func: uid(f)) @filter(eq(len(f), 0)) {
-			        count(uid)
-			    }
+				var(func: has(school), first: 3) {
+					f as uid
+				}
+				me(func: uid(f)) @filter(eq(len(f), 0)) {
+					uid
+					name
+				}
+			}`,
+			`{"data": {"me":[]}}`,
+		},
+		{
+			"Eq length with uid(0) should return results",
+			`{
+				f as var(func: eq(name, "random"))
+				me(func: uid(0)) @filter(eq(len(f), 0)) {
+					uid
+				}
 			}`,
-			`{"data": {"me":[{"count": 0}]}}`,
+			`{"data": {"me":[{"uid": "0x0"}]}}`,
 		},
 		{
 			"Ge length should return results",