diff --git a/src/Processors/QueryPlan/Optimizations/optimizeLazyMaterialization.cpp b/src/Processors/QueryPlan/Optimizations/optimizeLazyMaterialization.cpp
index a2f5275fd0f1..dcb123e82ad2 100644
--- a/src/Processors/QueryPlan/Optimizations/optimizeLazyMaterialization.cpp
+++ b/src/Processors/QueryPlan/Optimizations/optimizeLazyMaterialization.cpp
@@ -38,6 +38,7 @@ static void removeUsedColumnNames(
     String filter_name = {})
 {
     const auto & actions_outputs = actions.getOutputs();
+    NameSet passthrough_inputs;
 
     for (const auto * output_node : actions_outputs)
     {
@@ -52,6 +53,16 @@ static void removeUsedColumnNames(
         if (!node)
             continue;
 
+        /// The lazy reader maps each source column to a single output name. If an input
+        /// is forwarded more than once (for example, both a column and its alias), read
+        /// it eagerly so all outputs contain real data and do not duplicate lazy row coordinates.
+        if (node->type == ActionsDAG::ActionType::INPUT && !passthrough_inputs.insert(node->result_name).second)
+        {
+            const auto it = alias_index.find(node->result_name);
+            if (it != alias_index.end())
+                lazily_read_column_name_set.erase(it->second);
+        }
+
         if (node->type == ActionsDAG::ActionType::FUNCTION || node->type == ActionsDAG::ActionType::ARRAY_JOIN
             || (!filter_name.empty() && filter_name == output_node->result_name))
         {
diff --git a/tests/queries/0_stateless/05317_aliases_and_lazy_materialization.reference b/tests/queries/0_stateless/05317_aliases_and_lazy_materialization.reference
new file mode 100644
index 000000000000..538e1e60ef5c
--- /dev/null
+++ b/tests/queries/0_stateless/05317_aliases_and_lazy_materialization.reference
@@ -0,0 +1,10 @@
+99	99
+98	98
+97	97
+96	96
+95	95
+94	94
+93	93
+92	92
+91	91
+90	90
diff --git a/tests/queries/0_stateless/05317_aliases_and_lazy_materialization.sql b/tests/queries/0_stateless/05317_aliases_and_lazy_materialization.sql
new file mode 100644
index 000000000000..178ace2a6471
--- /dev/null
+++ b/tests/queries/0_stateless/05317_aliases_and_lazy_materialization.sql
@@ -0,0 +1,15 @@
+-- Tags: no-random-settings
+
+SET query_plan_optimize_lazy_materialization = 1;
+SET query_plan_max_limit_for_lazy_materialization = 10;
+SET enable_analyzer = 1;
+
+DROP TABLE IF EXISTS t_str;
+CREATE TABLE t_str (id UInt64, ts DateTime, s String, s_alias String ALIAS s)
+ENGINE = MergeTree ORDER BY id;
+INSERT INTO t_str SELECT number, toDateTime('2026-01-01 00:00:00') + number, toString(number) FROM numbers(100);
+
+-- Selecting both the source column and its alias must materialize both outputs.
+SELECT s, s_alias FROM t_str ORDER BY ts DESC LIMIT 10;
+
+DROP TABLE t_str;