diff --git a/types/pino/index.d.ts b/types/pino/index.d.ts
index 02b66cc745..0f98e0a622 100644
--- a/types/pino/index.d.ts
+++ b/types/pino/index.d.ts
@@ -1,7 +1,8 @@
-// Type definitions for pino 4.7
+// Type definitions for pino 4.16
 // Project: https://github.com/pinojs/pino.git
 // Definitions by: Peter Snider <https://github.com/psnider>
 //                 BendingBender <https://github.com/BendingBender>
+//                 Christian Rackerseder <https://github.com/screendriver>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.3
 
@@ -192,6 +193,10 @@ declare namespace P {
                 trace?: WriteFn;
             } & { [logLevel: string]: WriteFn });
         };
+        /**
+         * key-value object added as child logger to each log line. If set to null the base child logger is not added
+         */
+        base?: { [key: string]: any } | null;
     }
 
     interface PrettyOptions {
diff --git a/types/pino/pino-tests.ts b/types/pino/pino-tests.ts
index cc7704be77..6d226a1d92 100644
--- a/types/pino/pino-tests.ts
+++ b/types/pino/pino-tests.ts
@@ -49,6 +49,9 @@ pino({
     }
 });
 
+pino({ base: null });
+pino({ base: { foo: 'bar' } });
+
 if ('pino' in log) console.log(`pino version: ${log.pino}`);
 
 log.child({a: 'property'}).info('hello child!');