diff --git a/crates/oxc_codegen/src/gen.rs b/crates/oxc_codegen/src/gen.rs
index 9feacb6e0a2d6a..a0e05066e28e95 100644
--- a/crates/oxc_codegen/src/gen.rs
+++ b/crates/oxc_codegen/src/gen.rs
@@ -2405,8 +2405,7 @@ impl<'a, const MINIFY: bool> Gen<MINIFY> for MethodDefinition<'a> {
         }
         if let Some(body) = &self.value.body {
             body.gen(p, ctx);
-        }
-        if p.options.enable_typescript {
+        } else if p.options.enable_typescript {
             p.print_semicolon_after_statement();
         }
     }
diff --git a/tasks/coverage/src/transformer.rs b/tasks/coverage/src/transformer.rs
index 23ca45a800dc23..5e18791c0a0556 100644
--- a/tasks/coverage/src/transformer.rs
+++ b/tasks/coverage/src/transformer.rs
@@ -43,7 +43,7 @@ fn get_result(
     let options = options.unwrap_or_else(get_default_transformer_options);
     let parse_result1 = Parser::new(&allocator, source_text, source_type).parse();
     let mut program = parse_result1.program;
-    let _ = Transformer::new(
+    let transform_result1 = Transformer::new(
         &allocator,
         source_path,
         source_type,
@@ -53,7 +53,7 @@ fn get_result(
     )
     .build(&mut program);
 
-    let source_text1 = Codegen::<false>::new(
+    let ts_source_text1 = Codegen::<false>::new(
         &filename,
         source_text,
         CodegenOptions::default().with_typescript(true),
@@ -62,10 +62,19 @@ fn get_result(
     .build(&program)
     .source_text;
 
-    let parse_result2 = Parser::new(&allocator, &source_text1, source_type).parse();
+    let source_text1 =
+        Codegen::<false>::new(&filename, source_text, CodegenOptions::default(), None)
+            .build(&program)
+            .source_text;
+
+    if transform_result1.is_ok() && ts_source_text1 != source_text1 {
+        return TestResult::Mismatch(ts_source_text1.clone(), source_text1.clone());
+    }
+
+    let parse_result2 = Parser::new(&allocator, &ts_source_text1, source_type).parse();
     let mut program = parse_result2.program;
 
-    let _ = Transformer::new(
+    let transform_result2 = Transformer::new(
         &allocator,
         source_path,
         source_type,
@@ -75,19 +84,22 @@ fn get_result(
     )
     .build(&mut program);
 
-    let source_text2 = Codegen::<false>::new(
-        &filename,
-        &source_text1,
-        CodegenOptions::default().with_typescript(true),
-        None,
-    )
-    .build(&program)
-    .source_text;
-
-    let result = source_text1 == source_text2;
+    let source_text2 =
+        Codegen::<false>::new(&filename, &source_text1, CodegenOptions::default(), None)
+            .build(&program)
+            .source_text;
 
-    if result {
+    if source_text1 == source_text2 {
         TestResult::Passed
+    } else if transform_result1.is_err_and(|err| {
+        // If error messages are the same, we consider it as a pass.
+        transform_result2
+            .map_err(|err| err.iter().map(ToString::to_string).collect::<Vec<_>>().join("\n"))
+            .is_err_and(|err_message| {
+                err.iter().map(ToString::to_string).collect::<Vec<_>>().join("\n") == err_message
+            })
+    }) {
+        return TestResult::Passed;
     } else {
         TestResult::Mismatch(source_text1.clone(), source_text2)
     }
diff --git a/tasks/coverage/transformer_babel.snap b/tasks/coverage/transformer_babel.snap
index edaccc353d7f72..7149c9fb16fab6 100644
--- a/tasks/coverage/transformer_babel.snap
+++ b/tasks/coverage/transformer_babel.snap
@@ -2,4 +2,6 @@ commit: 4bd1b2c2
 
 transformer_babel Summary:
 AST Parsed     : 2099/2099 (100.00%)
-Positive Passed: 2099/2099 (100.00%)
+Positive Passed: 2097/2099 (99.90%)
+Mismatch: "typescript/class/parameter-properties/input.ts"
+Mismatch: "typescript/export/as-namespace/input.ts"
diff --git a/tasks/coverage/transformer_typescript.snap b/tasks/coverage/transformer_typescript.snap
index 9f5bf8551c3bfe..4476fdf4844bb7 100644
--- a/tasks/coverage/transformer_typescript.snap
+++ b/tasks/coverage/transformer_typescript.snap
@@ -2,5 +2,37 @@ commit: 64d2eeea
 
 transformer_typescript Summary:
 AST Parsed     : 5243/5243 (100.00%)
-Positive Passed: 5242/5243 (99.98%)
+Positive Passed: 5210/5243 (99.37%)
+Mismatch: "compiler/amdModuleName1.ts"
+Mismatch: "compiler/avoidCycleWithVoidExpressionReturnedFromArrow.ts"
+Mismatch: "compiler/clinterfaces.ts"
+Mismatch: "compiler/collectionPatternNoError.ts"
+Mismatch: "compiler/comparabilityTypeParametersRelatedByUnion.ts"
+Mismatch: "compiler/constEnumMergingWithValues1.ts"
+Mismatch: "compiler/constEnumMergingWithValues2.ts"
+Mismatch: "compiler/constEnumMergingWithValues3.ts"
+Mismatch: "compiler/constEnumMergingWithValues4.ts"
+Mismatch: "compiler/constEnumMergingWithValues5.ts"
 Mismatch: "compiler/elidedEmbeddedStatementsReplacedWithSemicolon.ts"
+Mismatch: "compiler/es5-umd4.ts"
+Mismatch: "compiler/exportAssignValueAndType.ts"
+Mismatch: "compiler/exportAssignmentWithPrivacyError.ts"
+Mismatch: "compiler/exportAssignmentWithoutIdentifier1.ts"
+Mismatch: "compiler/exportEqualNamespaces.ts"
+Mismatch: "compiler/exportEqualsAmd.ts"
+Mismatch: "compiler/exportEqualsClassNoRedeclarationError.ts"
+Mismatch: "compiler/exportEqualsCommonJs.ts"
+Mismatch: "compiler/exportEqualsUmd.ts"
+Mismatch: "compiler/module_augmentUninstantiatedModule2.ts"
+Mismatch: "compiler/noCircularDefinitionOnExportOfPrivateInMergedNamespace.ts"
+Mismatch: "compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile1.ts"
+Mismatch: "compiler/recursiveFieldSetting.ts"
+Mismatch: "compiler/sourceMapValidationExportAssignment.ts"
+Mismatch: "compiler/sourceMapValidationExportAssignmentCommonjs.ts"
+Mismatch: "compiler/varianceProblingAndZeroOrderIndexSignatureRelationsAlign.ts"
+Mismatch: "compiler/varianceProblingAndZeroOrderIndexSignatureRelationsAlign2.ts"
+Mismatch: "conformance/classes/members/privateNames/privateNameFieldParenthesisLeftAssignment.ts"
+Mismatch: "conformance/classes/propertyMemberDeclarations/initializationOrdering1.ts"
+Mismatch: "conformance/classes/propertyMemberDeclarations/instanceMemberInitialization.ts"
+Mismatch: "conformance/decorators/class/constructor/parameter/decoratorOnClassConstructorParameter5.ts"
+Mismatch: "conformance/statements/VariableStatements/usingDeclarations/usingDeclarationsTopLevelOfModule.2.ts"