diff --git a/libctru/include/3ds/services/ns.h b/libctru/include/3ds/services/ns.h
index 9b3100a..4f11036 100644
--- a/libctru/include/3ds/services/ns.h
+++ b/libctru/include/3ds/services/ns.h
@@ -41,5 +41,6 @@ Result NS_RebootToTitle(u8 mediatype, u64 titleid);
 /**
  * @brief Terminates the process with the specified titleid.
  * @param titleid ID of the title to terminate.
+ * @param timeout Timeout in nanoseconds. Pass 0 if not required.
  */
-Result NS_TerminateProcessTID(u64 titleid);
+Result NS_TerminateProcessTID(u64 titleid, u64 timeout);
\ No newline at end of file