diff --git a/dbms/src/Interpreters/Join.cpp b/dbms/src/Interpreters/Join.cpp
index e440977a577..29a4f4e57ca 100644
--- a/dbms/src/Interpreters/Join.cpp
+++ b/dbms/src/Interpreters/Join.cpp
@@ -131,7 +131,7 @@ Join::Join(
     , kind(kind_)
     , strictness(strictness_)
     , original_strictness(strictness)
-    , may_block_expanded_after_join_block(mayBlockExpandedAfterJoinBlock(kind, strictness))
+    , may_probe_side_expanded_after_join(mayProbeSideExpandedAfterJoin(kind, strictness))
     , key_names_left(key_names_left_)
     , key_names_right(key_names_right_)
     , build_concurrency(0)
@@ -982,7 +982,7 @@ Block Join::joinBlockHash(ProbeProcessInfo & probe_process_info) const
         /// exit the while loop if
         /// 1. probe_process_info.all_rows_joined_finish is true, which means all the rows in current block is processed
         /// 2. the block may be expanded after join and result_rows exceeds the min_result_block_size
-        if (probe_process_info.all_rows_joined_finish || (may_block_expanded_after_join_block && result_rows >= probe_process_info.min_result_block_size))
+        if (probe_process_info.all_rows_joined_finish || (may_probe_side_expanded_after_join && result_rows >= probe_process_info.min_result_block_size))
             break;
     }
     assert(!result_blocks.empty());
diff --git a/dbms/src/Interpreters/Join.h b/dbms/src/Interpreters/Join.h
index b4e823ef808..960a4fc4589 100644
--- a/dbms/src/Interpreters/Join.h
+++ b/dbms/src/Interpreters/Join.h
@@ -266,7 +266,7 @@ class Join
     ASTTableJoin::Kind kind;
     ASTTableJoin::Strictness strictness;
     ASTTableJoin::Strictness original_strictness;
-    const bool may_block_expanded_after_join_block;
+    const bool may_probe_side_expanded_after_join;
 
     /// Names of key columns (columns for equi-JOIN) in "left" table (in the order they appear in USING clause).
     const Names key_names_left;
diff --git a/dbms/src/Interpreters/JoinUtils.cpp b/dbms/src/Interpreters/JoinUtils.cpp
index e62673575bf..4cd13d0c52c 100644
--- a/dbms/src/Interpreters/JoinUtils.cpp
+++ b/dbms/src/Interpreters/JoinUtils.cpp
@@ -67,7 +67,7 @@ void computeDispatchHash(size_t rows,
     }
 }
 
-bool mayBlockExpandedAfterJoinBlock(ASTTableJoin::Kind kind, ASTTableJoin::Strictness strictness)
+bool mayProbeSideExpandedAfterJoin(ASTTableJoin::Kind kind, ASTTableJoin::Strictness strictness)
 {
     /// null aware semi/left semi/anti join never expand the block
     if (isNullAwareSemiFamily(kind))
diff --git a/dbms/src/Interpreters/JoinUtils.h b/dbms/src/Interpreters/JoinUtils.h
index 4b55cfdf7e0..8f60f1e4760 100644
--- a/dbms/src/Interpreters/JoinUtils.h
+++ b/dbms/src/Interpreters/JoinUtils.h
@@ -59,7 +59,7 @@ inline bool isNullAwareSemiFamily(ASTTableJoin::Kind kind)
         || kind == ASTTableJoin::Kind::NullAware_LeftSemi;
 }
 
-bool mayBlockExpandedAfterJoinBlock(ASTTableJoin::Kind kind, ASTTableJoin::Strictness strictness);
+bool mayProbeSideExpandedAfterJoin(ASTTableJoin::Kind kind, ASTTableJoin::Strictness strictness);
 
 struct ProbeProcessInfo
 {