diff --git a/crates/oxc_codegen/src/gen.rs b/crates/oxc_codegen/src/gen.rs
index 4f11d22fce27..b9bccc9e3cd1 100644
--- a/crates/oxc_codegen/src/gen.rs
+++ b/crates/oxc_codegen/src/gen.rs
@@ -682,12 +682,12 @@ impl<'a, const MINIFY: bool> Gen<MINIFY> for FunctionBody<'a> {
 impl<'a, const MINIFY: bool> Gen<MINIFY> for FormalParameter<'a> {
     fn gen(&self, p: &mut Codegen<{ MINIFY }>, ctx: Context) {
         self.decorators.gen(p, ctx);
-        if self.readonly {
-            p.print_str(b"readonly ");
-        }
         if let Some(accessibility) = self.accessibility {
             accessibility.gen(p, ctx);
         }
+        if self.readonly {
+            p.print_str(b"readonly ");
+        }
         self.pattern.gen(p, ctx);
     }
 }
@@ -2378,12 +2378,12 @@ impl<'a, const MINIFY: bool> Gen<MINIFY> for MethodDefinition<'a> {
         p.add_source_mapping(self.span.start);
         self.decorators.gen(p, ctx);
 
-        if self.r#type == MethodDefinitionType::TSAbstractMethodDefinition {
-            p.print_str(b"abstract ");
-        }
         if let Some(accessibility) = &self.accessibility {
             accessibility.gen(p, ctx);
         }
+        if self.r#type == MethodDefinitionType::TSAbstractMethodDefinition {
+            p.print_str(b"abstract ");
+        }
         if self.r#static {
             p.print_str(b"static ");
         }
@@ -2440,13 +2440,12 @@ impl<'a, const MINIFY: bool> Gen<MINIFY> for PropertyDefinition<'a> {
     fn gen(&self, p: &mut Codegen<{ MINIFY }>, ctx: Context) {
         p.add_source_mapping(self.span.start);
         self.decorators.gen(p, ctx);
-        if self.r#type == PropertyDefinitionType::TSAbstractPropertyDefinition {
-            p.print_str(b"abstract ");
-        }
         if let Some(accessibility) = &self.accessibility {
             accessibility.gen(p, ctx);
         }
-
+        if self.r#type == PropertyDefinitionType::TSAbstractPropertyDefinition {
+            p.print_str(b"abstract ");
+        }
         if self.r#static {
             p.print_str(b"static ");
         }
diff --git a/crates/oxc_codegen/tests/mod.rs b/crates/oxc_codegen/tests/mod.rs
index 0189aca93405..7389fbd47068 100644
--- a/crates/oxc_codegen/tests/mod.rs
+++ b/crates/oxc_codegen/tests/mod.rs
@@ -202,6 +202,9 @@ fn typescript() {
     test_ts("let foo: { <T>(t: T): void }", "let foo: {<T>(t: T): void};\n", false);
     test_ts("function <const T>(){}", "function<const T>() {}\n", false);
     test_ts("class A {m?(): void}", "class A {\n\tm?(): void;\n}\n", false);
+    test_ts("class A {constructor(public readonly a: number) {}}", "class A {\n\tconstructor(public readonly a: number) {}\n}\n", false);
+    test_ts("abstract class A {private abstract static m() {}}", "abstract class A {\n\tprivate abstract static m() {}\n}\n", false);
+    test_ts("abstract class A {private abstract static readonly prop: string}", "abstract class A {\n\tprivate abstract static readonly prop: string;\n}\n", false)
 }
 
 fn test_comment_helper(source_text: &str, expected: &str) {