diff --git a/src/claude_agent_sdk/_internal/client.py b/src/claude_agent_sdk/_internal/client.py
index 6dbc8776..52466272 100644
--- a/src/claude_agent_sdk/_internal/client.py
+++ b/src/claude_agent_sdk/_internal/client.py
@@ -31,10 +31,12 @@ def _convert_hooks_to_internal_format(
             internal_hooks[event] = []
             for matcher in matchers:
                 # Convert HookMatcher to internal dict format
-                internal_matcher = {
+                internal_matcher: dict[str, Any] = {
                     "matcher": matcher.matcher if hasattr(matcher, "matcher") else None,
                     "hooks": matcher.hooks if hasattr(matcher, "hooks") else [],
                 }
+                if hasattr(matcher, "timeout") and matcher.timeout is not None:
+                    internal_matcher["timeout"] = matcher.timeout
                 internal_hooks[event].append(internal_matcher)
         return internal_hooks
 
diff --git a/src/claude_agent_sdk/_internal/query.py b/src/claude_agent_sdk/_internal/query.py
index 76460100..b76bc043 100644
--- a/src/claude_agent_sdk/_internal/query.py
+++ b/src/claude_agent_sdk/_internal/query.py
@@ -126,12 +126,13 @@ async def initialize(self) -> dict[str, Any] | None:
                             self.next_callback_id += 1
                             self.hook_callbacks[callback_id] = callback
                             callback_ids.append(callback_id)
-                        hooks_config[event].append(
-                            {
-                                "matcher": matcher.get("matcher"),
-                                "hookCallbackIds": callback_ids,
-                            }
-                        )
+                        hook_matcher_config: dict[str, Any] = {
+                            "matcher": matcher.get("matcher"),
+                            "hookCallbackIds": callback_ids,
+                        }
+                        if matcher.get("timeout") is not None:
+                            hook_matcher_config["timeout"] = matcher.get("timeout")
+                        hooks_config[event].append(hook_matcher_config)
 
         # Send initialize request
         request = {
diff --git a/src/claude_agent_sdk/client.py b/src/claude_agent_sdk/client.py
index f95b50be..58b851d4 100644
--- a/src/claude_agent_sdk/client.py
+++ b/src/claude_agent_sdk/client.py
@@ -75,10 +75,12 @@ def _convert_hooks_to_internal_format(
             internal_hooks[event] = []
             for matcher in matchers:
                 # Convert HookMatcher to internal dict format
-                internal_matcher = {
+                internal_matcher: dict[str, Any] = {
                     "matcher": matcher.matcher if hasattr(matcher, "matcher") else None,
                     "hooks": matcher.hooks if hasattr(matcher, "hooks") else [],
                 }
+                if hasattr(matcher, "timeout") and matcher.timeout is not None:
+                    internal_matcher["timeout"] = matcher.timeout
                 internal_hooks[event].append(internal_matcher)
         return internal_hooks
 
diff --git a/src/claude_agent_sdk/types.py b/src/claude_agent_sdk/types.py
index 406c204c..689d8bbc 100644
--- a/src/claude_agent_sdk/types.py
+++ b/src/claude_agent_sdk/types.py
@@ -366,6 +366,9 @@ class HookMatcher:
     # A list of Python functions with function signature HookCallback
     hooks: list[HookCallback] = field(default_factory=list)
 
+    # Timeout in seconds for all hooks in this matcher (default: 60)
+    timeout: int | None = None
+
 
 # MCP Server config
 class McpStdioServerConfig(TypedDict):