diff --git a/hugegraph-dist/src/assembly/static/conf/gremlin-server.yaml b/hugegraph-dist/src/assembly/static/conf/gremlin-server.yaml
index 16f7e29c91..9edf5cf47d 100644
--- a/hugegraph-dist/src/assembly/static/conf/gremlin-server.yaml
+++ b/hugegraph-dist/src/assembly/static/conf/gremlin-server.yaml
@@ -41,6 +41,7 @@ scriptEngines: {
           com.baidu.hugegraph.traversal.algorithm.steps.EdgeStep,
           com.baidu.hugegraph.traversal.algorithm.steps.RepeatEdgeStep,
           com.baidu.hugegraph.traversal.algorithm.steps.WeightedEdgeStep,
+          com.baidu.hugegraph.traversal.optimize.ConditionP,
           com.baidu.hugegraph.traversal.optimize.Text,
           com.baidu.hugegraph.traversal.optimize.TraversalUtil,
           com.baidu.hugegraph.util.DateUtil