diff --git a/taichi/ir/transforms.h b/taichi/ir/transforms.h
index 20bbb0533c841..356cc33342dfb 100644
--- a/taichi/ir/transforms.h
+++ b/taichi/ir/transforms.h
@@ -30,7 +30,7 @@ namespace irpass {
 void re_id(IRNode *root);
 void flag_access(IRNode *root);
 void eliminate_immutable_local_vars(IRNode *root);
-void scalarize(IRNode *root, const CompileConfig &config);
+void scalarize(IRNode *root);
 void lower_matrix_ptr(IRNode *root);
 bool die(IRNode *root);
 bool simplify(IRNode *root, const CompileConfig &config);
diff --git a/taichi/transforms/compile_to_offloads.cpp b/taichi/transforms/compile_to_offloads.cpp
index 76a33b6c22dc8..d2c3c191a387b 100644
--- a/taichi/transforms/compile_to_offloads.cpp
+++ b/taichi/transforms/compile_to_offloads.cpp
@@ -56,7 +56,7 @@ void compile_to_offloads(IRNode *ir,
   print("Immutable local vars eliminated");
 
   if (config.real_matrix_scalarize) {
-    irpass::scalarize(ir, config);
+    irpass::scalarize(ir);
 
     // Remove redundant MatrixInitStmt inserted during scalarization
     irpass::die(ir);
@@ -342,7 +342,7 @@ void compile_function(IRNode *ir,
   }
 
   if (config.real_matrix_scalarize) {
-    irpass::scalarize(ir, config);
+    irpass::scalarize(ir);
 
     // Remove redundant MatrixInitStmt inserted during scalarization
     irpass::die(ir);
diff --git a/taichi/transforms/scalarize.cpp b/taichi/transforms/scalarize.cpp
index 9c925b187c488..02755190ce10e 100644
--- a/taichi/transforms/scalarize.cpp
+++ b/taichi/transforms/scalarize.cpp
@@ -740,7 +740,7 @@ class ExtractLocalPointers : public BasicStmtVisitor {
 
 namespace irpass {
 
-void scalarize(IRNode *root, const CompileConfig &config) {
+void scalarize(IRNode *root) {
   TI_AUTO_PROF;
   Scalarize scalarize_pass(root);
   auto scalarizable_allocas = GatherScalarizableLocalPointers::run(root);
diff --git a/tests/cpp/transforms/scalarize_test.cpp b/tests/cpp/transforms/scalarize_test.cpp
index 3ac66de281054..058320a053406 100644
--- a/tests/cpp/transforms/scalarize_test.cpp
+++ b/tests/cpp/transforms/scalarize_test.cpp
@@ -44,7 +44,7 @@ TEST(Scalarize, ScalarizeGlobalStore) {
 
   block->push_back<GlobalStoreStmt>(dest_stmt, matrix_init_stmt);
 
-  irpass::scalarize(block.get(), test_prog.prog()->this_thread_config());
+  irpass::scalarize(block.get());
   irpass::lower_matrix_ptr(block.get());
   irpass::die(block.get());
 
@@ -100,7 +100,7 @@ TEST(Scalarize, ScalarizeGlobalLoad) {
   // Without this GlobalStoreStmt, nothing survives irpass::die()
   block->push_back<GlobalStoreStmt>(src_stmt, load_stmt);
 
-  irpass::scalarize(block.get(), test_prog.prog()->this_thread_config());
+  irpass::scalarize(block.get());
   irpass::lower_matrix_ptr(block.get());
   irpass::die(block.get());
 
@@ -160,7 +160,7 @@ TEST(Scalarize, ScalarizeLocalStore) {
   // LocalStoreStmt survives irpass::die()
   block->push_back<LocalStoreStmt>(dest_stmt, matrix_init_stmt);
 
-  irpass::scalarize(block.get(), test_prog.prog()->this_thread_config());
+  irpass::scalarize(block.get());
   irpass::die(block.get());
 
   EXPECT_EQ(block->size(), 2 /*const*/ + 4 /*alloca*/ + 4 /*store*/);
@@ -207,7 +207,7 @@ TEST(Scalarize, ScalarizeLocalLoad) {
   // Without this GlobalStoreStmt, nothing survives irpass::die()
   block->push_back<GlobalStoreStmt>(src_stmt, load_stmt);
 
-  irpass::scalarize(block.get(), test_prog.prog()->this_thread_config());
+  irpass::scalarize(block.get());
   irpass::die(block.get());
 
   EXPECT_EQ(block->size(), 4 /*alloca*/ + 4 /*load*/ + 4 /*store*/);