diff --git a/onnxruntime/core/providers/vitisai/imp/node.cc b/onnxruntime/core/providers/vitisai/imp/node.cc
index 637fb10ccd..6d65ad4e8c 100644
--- a/onnxruntime/core/providers/vitisai/imp/node.cc
+++ b/onnxruntime/core/providers/vitisai/imp/node.cc
@@ -21,7 +21,11 @@ vaip_core::DllSafe<std::vector<NodeInput>> node_get_inputs(const Node& node) {
   }
   for (auto iter = node.InputEdgesBegin(); iter != node.InputEdgesEnd();
        ++iter) {
-    ret[iter->GetDstArgIndex()].node = &iter->GetNode();
+    auto dst_idx = static_cast<size_t>(iter->GetDstArgIndex());
+    if (dst_idx < ret.size()) {
+      // ignore implicit nodes.
+      ret[dst_idx].node = &iter->GetNode();
+    }
   }
   return vaip_core::DllSafe(ret);
 }