diff --git a/fe/fe-core/src/main/java/org/apache/doris/qe/Coordinator.java b/fe/fe-core/src/main/java/org/apache/doris/qe/Coordinator.java
index e3e414273476f7..8f95c0489054fd 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/qe/Coordinator.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/qe/Coordinator.java
@@ -635,6 +635,7 @@ private void sendFragment() throws TException, RpcException, UserException {
                         beToExecStates.putIfAbsent(execState.backend.getId(), states);
                     }
                     states.addState(execState);
+                    ++backendIdx;
                 }
                 profileFragmentId += 1;
             } // end for fragments