diff --git a/crates/oxc_formatter/src/write/mod.rs b/crates/oxc_formatter/src/write/mod.rs
index 8f1422491e4be..512d03b27e653 100644
--- a/crates/oxc_formatter/src/write/mod.rs
+++ b/crates/oxc_formatter/src/write/mod.rs
@@ -1477,12 +1477,6 @@ impl<'a> Format<'a> for FormatTSSignature<'a, '_> {
                 }
             }
             Semicolons::AsNeeded => {
-                let TSSignature::TSPropertySignature(property) = self.signature.as_ref() else {
-                    return;
-                };
-
-                let has_no_type_annotation = property.type_annotation.is_none();
-
                 // Needs semicolon anyway when:
                 // 1. It's a non-computed property signature with type annotation followed by
                 //    a call signature that has type parameters
@@ -1490,14 +1484,16 @@ impl<'a> Format<'a> for FormatTSSignature<'a, '_> {
                 // 2. It's a non-computed property signature without type annotation followed by
                 //    a call signature or method signature
                 //    e.g for: `a; () => void` or `a; method(): void`
-                let needs_semicolon = !property.computed
+                let needs_semicolon = matches!(
+                    self.signature.as_ref(), TSSignature::TSPropertySignature(property) if !property.computed
                     && self.next_signature.is_some_and(|signature| match signature.as_ref() {
                         TSSignature::TSCallSignatureDeclaration(call) => {
-                            has_no_type_annotation || call.type_parameters.is_some()
+                            property.type_annotation.is_none() || call.type_parameters.is_some()
                         }
-                        TSSignature::TSMethodSignature(_) => has_no_type_annotation,
+                        TSSignature::TSMethodSignature(_) => property.type_annotation.is_none(),
                         _ => false,
-                    });
+                    })
+                );
 
                 if needs_semicolon {
                     write!(f, [";"]);
diff --git a/crates/oxc_formatter/tests/fixtures/ts/semi/method-signatures.ts b/crates/oxc_formatter/tests/fixtures/ts/semi/method-signatures.ts
index 18d7114e2cf09..3daaaea180ce5 100644
--- a/crates/oxc_formatter/tests/fixtures/ts/semi/method-signatures.ts
+++ b/crates/oxc_formatter/tests/fixtures/ts/semi/method-signatures.ts
@@ -2,3 +2,7 @@ export interface MethodSignatures {
   (arg: string): void;
   (arg: number): null;
 }
+
+export type MethodSignaturesAndPropertyOnSameLine =
+  | { json(): never; ok: false }
+  | { json(): Promise<any>; ok: true }
diff --git a/crates/oxc_formatter/tests/fixtures/ts/semi/method-signatures.ts.snap b/crates/oxc_formatter/tests/fixtures/ts/semi/method-signatures.ts.snap
index 9038f88b68eb6..dbcc104d4957d 100644
--- a/crates/oxc_formatter/tests/fixtures/ts/semi/method-signatures.ts.snap
+++ b/crates/oxc_formatter/tests/fixtures/ts/semi/method-signatures.ts.snap
@@ -7,6 +7,10 @@ export interface MethodSignatures {
   (arg: number): null;
 }
 
+export type MethodSignaturesAndPropertyOnSameLine =
+  | { json(): never; ok: false }
+  | { json(): Promise<any>; ok: true }
+
 ==================== Output ====================
 -------------------------------
 { printWidth: 80, semi: false }
@@ -16,6 +20,10 @@ export interface MethodSignatures {
   (arg: number): null
 }
 
+export type MethodSignaturesAndPropertyOnSameLine =
+  | { json(): never; ok: false }
+  | { json(): Promise<any>; ok: true }
+
 --------------------------------
 { printWidth: 100, semi: false }
 --------------------------------
@@ -24,6 +32,10 @@ export interface MethodSignatures {
   (arg: number): null
 }
 
+export type MethodSignaturesAndPropertyOnSameLine =
+  | { json(): never; ok: false }
+  | { json(): Promise<any>; ok: true }
+
 ------------------------------
 { printWidth: 80, semi: true }
 ------------------------------
@@ -32,6 +44,10 @@ export interface MethodSignatures {
   (arg: number): null;
 }
 
+export type MethodSignaturesAndPropertyOnSameLine =
+  | { json(): never; ok: false }
+  | { json(): Promise<any>; ok: true };
+
 -------------------------------
 { printWidth: 100, semi: true }
 -------------------------------
@@ -40,4 +56,8 @@ export interface MethodSignatures {
   (arg: number): null;
 }
 
+export type MethodSignaturesAndPropertyOnSameLine =
+  | { json(): never; ok: false }
+  | { json(): Promise<any>; ok: true };
+
 ===================== End =====================