diff --git a/dbms/src/Interpreters/InterpreterSelectQuery.cpp b/dbms/src/Interpreters/InterpreterSelectQuery.cpp
index c5da01e9e3b..dea58fad546 100644
--- a/dbms/src/Interpreters/InterpreterSelectQuery.cpp
+++ b/dbms/src/Interpreters/InterpreterSelectQuery.cpp
@@ -682,7 +682,7 @@ QueryProcessingStage::Enum InterpreterSelectQuery::executeFetchColumns(Pipeline
                 optimize_prewhere(*merge_tree);
         }
 
-        if (query_analyzer->appendPrewhere(chain, false))
+        if (!dry_run && query_analyzer->appendPrewhere(chain, false))
         {
             query_info.prewhere_actions = chain.getLastActions();
             chain.addStep();