diff --git a/types/node/index.d.ts b/types/node/index.d.ts
index b26ea63807..2eba98fffe 100644
--- a/types/node/index.d.ts
+++ b/types/node/index.d.ts
@@ -713,6 +713,7 @@ declare namespace NodeJS {
         abort(): void;
         chdir(directory: string): void;
         cwd(): string;
+        debugPort: number;
         emitWarning(warning: string | Error, name?: string, ctor?: Function): void;
         env: ProcessEnv;
         exit(code?: number): never;
diff --git a/types/node/v0/index.d.ts b/types/node/v0/index.d.ts
index 37f92cbc50..b88dd54a0c 100644
--- a/types/node/v0/index.d.ts
+++ b/types/node/v0/index.d.ts
@@ -242,6 +242,7 @@ declare namespace NodeJS {
         abort(): void;
         chdir(directory: string): void;
         cwd(): string;
+        debugPort: number;
         env: any;
         exit(code?: number): void;
         getgid(): number;
diff --git a/types/node/v4/index.d.ts b/types/node/v4/index.d.ts
index db5518575d..dab3b0c5d9 100644
--- a/types/node/v4/index.d.ts
+++ b/types/node/v4/index.d.ts
@@ -417,6 +417,7 @@ declare namespace NodeJS {
         abort(): void;
         chdir(directory: string): void;
         cwd(): string;
+        debugPort: number;
         env: any;
         exit(code?: number): void;
         exitCode: number;
diff --git a/types/node/v6/index.d.ts b/types/node/v6/index.d.ts
index 9d2ea9ea00..056021841c 100644
--- a/types/node/v6/index.d.ts
+++ b/types/node/v6/index.d.ts
@@ -480,6 +480,7 @@ declare namespace NodeJS {
         abort(): void;
         chdir(directory: string): void;
         cwd(): string;
+        debugPort: number;
         emitWarning(warning: string | Error, name?: string, ctor?: Function): void;
         env: any;
         exit(code?: number): void;
diff --git a/types/node/v7/index.d.ts b/types/node/v7/index.d.ts
index 58497e23d6..055933977d 100644
--- a/types/node/v7/index.d.ts
+++ b/types/node/v7/index.d.ts
@@ -477,6 +477,7 @@ declare namespace NodeJS {
         abort(): void;
         chdir(directory: string): void;
         cwd(): string;
+        debugPort: number;
         emitWarning(warning: string | Error, name?: string, ctor?: Function): void;
         env: any;
         exit(code?: number): never;
diff --git a/types/node/v8/index.d.ts b/types/node/v8/index.d.ts
index 32530306c2..daaf68e5a8 100644
--- a/types/node/v8/index.d.ts
+++ b/types/node/v8/index.d.ts
@@ -561,6 +561,7 @@ declare namespace NodeJS {
         abort(): void;
         chdir(directory: string): void;
         cwd(): string;
+        debugPort: number;
         emitWarning(warning: string | Error, name?: string, ctor?: Function): void;
         env: ProcessEnv;
         exit(code?: number): never;
diff --git a/types/node/v9/index.d.ts b/types/node/v9/index.d.ts
index e7112daa25..b59d5143c9 100644
--- a/types/node/v9/index.d.ts
+++ b/types/node/v9/index.d.ts
@@ -704,6 +704,7 @@ declare namespace NodeJS {
         abort(): void;
         chdir(directory: string): void;
         cwd(): string;
+        debugPort: number;
         emitWarning(warning: string | Error, name?: string, ctor?: Function): void;
         env: ProcessEnv;
         exit(code?: number): never;