diff --git a/docs/docs.lua b/docs/docs.lua
index f0af7f32..a412ddd2 100644
--- a/docs/docs.lua
+++ b/docs/docs.lua
@@ -470,7 +470,7 @@ local doc = {
             local uv = require("luv") -- "luv" when stand-alone, "uv" in luvi apps
 
             local server = uv.new_tcp()
-            server:bind("127.0.0.1", 1337)
+            assert(server:bind("127.0.0.1", 1337))
             server:listen(128, function (err)
               assert(not err, err)
               local client = uv.new_tcp()
diff --git a/docs/docs.md b/docs/docs.md
index 82894395..a7eb0587 100644
--- a/docs/docs.md
+++ b/docs/docs.md
@@ -15,7 +15,7 @@ Here is a small example showing a TCP echo server:
 local uv = require("luv") -- "luv" when stand-alone, "uv" in luvi apps
 
 local server = uv.new_tcp()
-server:bind("127.0.0.1", 1337)
+assert(server:bind("127.0.0.1", 1337))
 server:listen(128, function (err)
   assert(not err, err)
   local client = uv.new_tcp()
diff --git a/docs/meta.lua b/docs/meta.lua
index 10f7b27a..ec6bf3a8 100644
--- a/docs/meta.lua
+++ b/docs/meta.lua
@@ -21,7 +21,7 @@ uv.constants = {}
 --- local uv = require("luv") -- "luv" when stand-alone, "uv" in luvi apps
 ---
 --- local server = uv.new_tcp()
---- server:bind("127.0.0.1", 1337)
+--- assert(server:bind("127.0.0.1", 1337))
 --- server:listen(128, function (err)
 ---   assert(not err, err)
 ---   local client = uv.new_tcp()