diff --git a/dbms/src/DataStreams/CheckConstraintsBlockOutputStream.h b/dbms/src/DataStreams/CheckConstraintsBlockOutputStream.h
index 623eccc8172..e1e15f8e454 100644
--- a/dbms/src/DataStreams/CheckConstraintsBlockOutputStream.h
+++ b/dbms/src/DataStreams/CheckConstraintsBlockOutputStream.h
@@ -19,13 +19,11 @@ public:
     CheckConstraintsBlockOutputStream(
             const BlockOutputStreamPtr & output_,
             const Block & header_,
-            const ConstraintsDescription & constraints_,
-            const Context & context_)
+            const ConstraintsDescription & constraints_)
             : output(output_),
               header(header_),
               constraints(constraints_),
-              expressions(constraints_.getExpressions(context_, header.getNamesAndTypesList())),
-              context(context_)
+              expressions(constraints_.getExpressions(context_, header.getNamesAndTypesList()))
     { }
 
     Block getHeader() const override { return header; }
@@ -43,6 +41,5 @@ private:
     Block header;
     const ConstraintsDescription constraints;
     const ConstraintsExpressions expressions;
-    const Context & context;
 };
 }
diff --git a/dbms/src/Interpreters/InterpreterInsertQuery.cpp b/dbms/src/Interpreters/InterpreterInsertQuery.cpp
index fa6df1599ea..d47dd978b3a 100644
--- a/dbms/src/Interpreters/InterpreterInsertQuery.cpp
+++ b/dbms/src/Interpreters/InterpreterInsertQuery.cpp
@@ -118,8 +118,7 @@ BlockIO InterpreterInsertQuery::execute()
     out = std::make_shared<AddingDefaultBlockOutputStream>(
         out, query_sample_block, table->getSampleBlock(), table->getColumns().getDefaults(), context);
 
-    out = std::make_shared<CheckConstraintsBlockOutputStream>(
-            out, query_sample_block, table->getConstraints(), context);
+    out = std::make_shared<CheckConstraintsBlockOutputStream>(out, query_sample_block, table->getConstraints());
 
     auto out_wrapper = std::make_shared<CountingBlockOutputStream>(out);
     out_wrapper->setProcessListElement(context.getProcessListElement());