diff --git a/es2panda/binder/scope.h b/es2panda/binder/scope.h
index d2bc3419d4204e9dc01a91e78d572a9b703dbe6f..961499455e10bfc529be42dc73557416d51c3ab4 100644
--- a/es2panda/binder/scope.h
+++ b/es2panda/binder/scope.h
@@ -514,9 +514,10 @@ public:
     bool AddBinding(ArenaAllocator *allocator, Variable *currentVariable, Decl *newDecl,
                     [[maybe_unused]] ScriptExtension extension) override;
 
-    void RemoveThisParam()
+    void RemoveThisParam(const std::string_view &thisParam)
     {
         params_.erase(params_.begin());
+        bindings_.erase(thisParam);
     }
 
     friend class FunctionScope;
diff --git a/es2panda/ir/base/scriptFunction.h b/es2panda/ir/base/scriptFunction.h
index b610c74a5086febc1abb2a56aeab59a0d39524a1..b297306853b58271f212434ed06ab0794ad404f6 100644
--- a/es2panda/ir/base/scriptFunction.h
+++ b/es2panda/ir/base/scriptFunction.h
@@ -59,7 +59,8 @@ public:
             if (firstParam->IsIdentifier() && firstParam->AsIdentifier()->Name().Is(THIS_PARAM)) {
                 thisParam_ = firstParam;
                 params_.erase(params_.begin());
-                scope_->ParamScope()->RemoveThisParam();
+                scope_->ParamScope()->RemoveThisParam(THIS_PARAM);
+                scope_->Bindings().erase(THIS_PARAM);
             }
         }
     }
diff --git a/es2panda/test/compiler/ts/cases/conformance/functions/test-ts-function-3-expected.txt b/es2panda/test/compiler/ts/cases/conformance/functions/test-ts-function-3-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..fece8ea852b3f65ede3531dd3d9ac4c58e21cf3d
--- /dev/null
+++ b/es2panda/test/compiler/ts/cases/conformance/functions/test-ts-function-3-expected.txt
@@ -0,0 +1,2 @@
+Test
+20
diff --git a/es2panda/test/compiler/ts/cases/conformance/functions/test-ts-function-3.ts b/es2panda/test/compiler/ts/cases/conformance/functions/test-ts-function-3.ts
new file mode 100644
index 0000000000000000000000000000000000000000..81311acd69a18d9f5e3fdecde671a81c7391d028
--- /dev/null
+++ b/es2panda/test/compiler/ts/cases/conformance/functions/test-ts-function-3.ts
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+class Employee {
+    name : string
+    debug : (number) => void
+}
+
+function dump(this : Employee, age : number) {
+    print(this.name)
+    print(age)
+}
+
+let a : Employee = {name : "Test", debug : dump}
+a.debug(20)
+