diff --git a/types/socket.io/index.d.ts b/types/socket.io/index.d.ts
index f5e6c5fd00..70ef1d6a2c 100644
--- a/types/socket.io/index.d.ts
+++ b/types/socket.io/index.d.ts
@@ -169,7 +169,7 @@ declare namespace SocketIO {
 		listen( port: number, opts?: ServerOptions ): Server;
 
 		/**
-		 * Binds socket.io to an engine.io intsance
+		 * Binds socket.io to an engine.io instance
 		 * @param src The Engine.io (or compatible) server to bind to
 		 * @return This Server
 		 */
diff --git a/types/socket.io/v1/index.d.ts b/types/socket.io/v1/index.d.ts
index 95a9ff1b4f..191680df46 100644
--- a/types/socket.io/v1/index.d.ts
+++ b/types/socket.io/v1/index.d.ts
@@ -169,7 +169,7 @@ declare namespace SocketIO {
 		listen( port: number, opts?: ServerOptions ): Server;
 
 		/**
-		 * Binds socket.io to an engine.io intsance
+		 * Binds socket.io to an engine.io instance
 		 * @param src The Engine.io (or compatible) server to bind to
 		 * @return This Server
 		 */