diff --git a/lib/semantic.js b/lib/semantic.js
index d54d054..0751b4f 100644
--- a/lib/semantic.js
+++ b/lib/semantic.js
@@ -2369,27 +2369,43 @@ class TypeChecker {
 
   visitInstanceCall(ast, env) {
     assert.equal(ast.left.type, 'instance_call');
-    let moduleName;
-    if (ast.left.id.type === Tag.ID) {
-      const moduleType = env.local.get(ast.left.id.lexeme);
-      moduleName = moduleType.name;
-    } else {
-      const type = this.getVariableType(ast.left.id, env);
+    const type = this.getVariableType(ast.left.id, env);
+    let moduleName = type.name;
+    if(isBasicType(type.type)) {
+      moduleName = this.getBuiltinModule(type.type);
+      ast.builtinModule = moduleName;
+      ast.left.id.moduleType = {
+        type: 'basic',
+        name: type.type,
+      };
+    } else if(type.type === 'basic' && isBasicType(type.name)) {
+      moduleName = this.getBuiltinModule(type.name);
+      ast.builtinModule = moduleName;
+      ast.left.id.moduleType = {
+        type: 'basic',
+        name: type.name,
+      };
+    } else if(type.type === 'model') {
+      moduleName = '$ModelInstance';
+      ast.builtinModule = moduleName;
+      ast.left.id.moduleType = {
+        type: 'model',
+        name: type.name,
+      };
+    } else if(builtin.has(moduleName)) {
+      ast.builtinModule = moduleName;
+      ast.left.id.moduleType = {
+        type: 'builtin_module',
+        name: moduleName,
+      };
+    } else if (ast.left.id.tag === Tag.ID) {
       moduleName = type.name;
-      if(isBasicType(type.type)) {
-        moduleName = this.getBuiltinModule(type.type);
-        ast.builtinModule = moduleName;
-      } else if(type.type === 'basic' && isBasicType(type.name)) {
-        moduleName = this.getBuiltinModule(type.name);
-        ast.builtinModule = moduleName;
-      } else if(type.type === 'model') {
-        moduleName = '$ModelInstance';
-        ast.builtinModule = moduleName;
-      } else if(builtin.has(moduleName)) {
-        ast.builtinModule = moduleName;
-      }
+      ast.left.id.moduleType = {
+        type: 'module',
+        name: moduleName
+      };
     }
-    
+
     const checker = this.getChecker(moduleName);
     const method = ast.left.propertyPath[0];
     const name = method.lexeme;
diff --git a/test/fixtures/module_instance/main.dara b/test/fixtures/module_instance/main.dara
index 615202d..6f73c86 100644
--- a/test/fixtures/module_instance/main.dara
+++ b/test/fixtures/module_instance/main.dara
@@ -1,5 +1,7 @@
 import OSS
 
 static function call(): OSS {
-  return new OSS();
+  var oss = new OSS();
+  oss.putObject();
+  return oss;
 }
diff --git a/test/import.test.js b/test/import.test.js
index 651e192..c9dd248 100644
--- a/test/import.test.js
+++ b/test/import.test.js
@@ -355,29 +355,41 @@ function callOSS(): string {
 
   it('module instance should ok', function () {
     const ast = readAndParse('fixtures/module_instance/main.dara');
+    console.log('%j', ast);
     const [f1] = ast.moduleBody.nodes;
     const [s1] = f1.functionBody.stmts.stmts;
     expect(s1).to.be.eql({
+      'expectedType': undefined,
+      'type': 'declare',
+      'id': {
+        'tag': 2,
+        'loc': loc(4, 7, 4 ,10),
+        'lexeme': 'oss',
+        'index': 12
+      },
       'expr': {
+        'type': 'construct',
         'aliasId': {
+          'tag': 2,
+          'loc': loc(4, 17, 4 ,20),
           'lexeme': 'OSS',
-          'index': 13,
-          'loc': loc(4, 14, 4, 17),
-          'tag': 2
+          'index': 15
         },
         'args': [],
+        'tokenRange': [
+          14,
+          18
+        ],
         'inferred': {
+          'type': 'module_instance',
           'name': 'OSS',
-          'parentModuleIds': [],
-          'type': 'module_instance'
-        },
-        'tokenRange': [12, 16],
-        'type': 'construct'
+          'parentModuleIds': []
+        }
       },
-      'loc': loc(4, 3, 5, 1),
-      'needCast': false,
-      'tokenRange': [11, 16],
-      'type': 'return'
+      'tokenRange': [
+        11,
+        18
+      ]
     });
   });
 });
diff --git a/test/semantic.test.js b/test/semantic.test.js
index 053602b..5d67def 100644
--- a/test/semantic.test.js
+++ b/test/semantic.test.js
@@ -7617,4 +7617,30 @@ describe('semantic', function () {
       readAndParse('fixtures/multi_catch/main.dara');
     }).to.not.throwException();
   });
+
+  it('module instance_call left type shoule be ok', function(){
+    let ast = readAndParse('fixtures/module_instance/main.dara');
+    const [f1] = ast.moduleBody.nodes;
+    const [, s2] = f1.functionBody.stmts.stmts;
+    expect(s2.left.id).to.be.eql({
+      'tag': 2,
+      'loc': {
+        'start': {
+          'line': 5,
+          'column': 3
+        },
+        'end': {
+          'line': 5,
+          'column': 6
+        }
+      },
+      'lexeme': 'oss',
+      'index': 19,
+      'type': 'variable',
+      'moduleType': {
+        'type': 'module',
+        'name': 'OSS'
+      }
+    });
+  });
 });
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