diff --git a/docs/book/firmware.md b/docs/book/firmware.md
index f8bb47e..da78338 100644
--- a/docs/book/firmware.md
+++ b/docs/book/firmware.md
@@ -27,6 +27,6 @@
 
 Вспомогательные файлы включают:
 
-* [`vector.h`](https://github.com/okalachev/flix/blob/canonical/flix/vector.h), [`quaternion.h`](https://github.com/okalachev/flix/blob/canonical/flix/quaternion.h) — реализация библиотек векторов и кватернионов проекта.
+* [`vector.h`](https://github.com/okalachev/flix/blob/canonical/flix/vector.h), [`quaternion.h`](https://github.com/okalachev/flix/blob/canonical/flix/quaternion.h) — реализация библиотек векторов и кватернионов.
 * [`pid.h`](https://github.com/okalachev/flix/blob/canonical/flix/pid.h) — реализация общего ПИД-регулятора.
 * [`lpf.h`](https://github.com/okalachev/flix/blob/canonical/flix/lpf.h) — реализация общего фильтра нижних частот.
diff --git a/docs/firmware.md b/docs/firmware.md
index 5b672cd..8aad0af 100644
--- a/docs/firmware.md
+++ b/docs/firmware.md
@@ -30,7 +30,7 @@ Firmware source files are located in `flix` directory. The key files are:
 
 Utility files include:
 
-* [`vector.h`](../flix/vector.h), [`quaternion.h`](../flix/quaternion.h) — project's vector and quaternion libraries implementation.
+* [`vector.h`](../flix/vector.h), [`quaternion.h`](../flix/quaternion.h) — vector and quaternion libraries implementation.
 * [`pid.h`](../flix/pid.h) — generic PID controller implementation.
 * [`lpf.h`](../flix/lpf.h) — generic low-pass filter implementation.