diff --git a/config.md b/config.md
index 4bd14e78..42c1a616 100644
--- a/config.md
+++ b/config.md
@@ -226,6 +226,7 @@ If a hook returns a non-zero exit code, then an error is logged and the remainin
         "poststart": [
             {
                 "path": "/usr/bin/notify-start"
+                "timeout": 5
             }
         ],
         "poststop": [
@@ -239,6 +240,7 @@ If a hook returns a non-zero exit code, then an error is logged and the remainin
 
 `path` is required for a hook.
 `args` and `env` are optional.
+`timeout` is the number of seconds before aborting the hook.
 The semantics are the same as `Path`, `Args` and `Env` in [golang Cmd](https://golang.org/pkg/os/exec/#Cmd).
 
 ## Annotations
diff --git a/specs-go/config.go b/specs-go/config.go
index 34db8f4b..162993d5 100644
--- a/specs-go/config.go
+++ b/specs-go/config.go
@@ -96,9 +96,10 @@ type Mount struct {
 
 // Hook specifies a command that is run at a particular event in the lifecycle of a container
 type Hook struct {
-	Path string   `json:"path"`
-	Args []string `json:"args,omitempty"`
-	Env  []string `json:"env,omitempty"`
+	Path    string   `json:"path"`
+	Args    []string `json:"args,omitempty"`
+	Env     []string `json:"env,omitempty"`
+	Timeout *int     `json:"timeout,omitempty"`
 }
 
 // Hooks for container setup and teardown