diff --git a/src/xrt/auxiliary/util/u_device.c b/src/xrt/auxiliary/util/u_device.c
index 6f01dc938..af5d899e2 100644
--- a/src/xrt/auxiliary/util/u_device.c
+++ b/src/xrt/auxiliary/util/u_device.c
@@ -25,7 +25,7 @@
 
 /*
  *
- * Matricies.
+ * Matrices.
  *
  */
 
diff --git a/src/xrt/auxiliary/util/u_pacing_compositor.c b/src/xrt/auxiliary/util/u_pacing_compositor.c
index e1ca564c1..15269b6af 100644
--- a/src/xrt/auxiliary/util/u_pacing_compositor.c
+++ b/src/xrt/auxiliary/util/u_pacing_compositor.c
@@ -313,7 +313,7 @@ predict_next_frame(struct pacing_compositor *pc, uint64_t now_ns)
 	if (last_predicted == NULL && last_completed == NULL) {
 		f = do_clean_slate_frame(pc, now_ns);
 	} else if (last_completed == last_predicted) {
-		// Very high propability that we missed a frame.
+		// Very high probability that we missed a frame.
 		f = walk_forward_through_frames(pc, last_completed->earliest_present_time_ns, now_ns);
 	} else if (last_completed != NULL) {
 		assert(last_predicted != NULL);
diff --git a/src/xrt/auxiliary/util/u_session.h b/src/xrt/auxiliary/util/u_session.h
index 48be401f4..c7027b8ad 100644
--- a/src/xrt/auxiliary/util/u_session.h
+++ b/src/xrt/auxiliary/util/u_session.h
@@ -56,7 +56,7 @@ struct u_session
 /*!
  * Create a session, optionally pass in a @ref u_system. If @p usys is not NULL
  * the call register this session on that system. This function is exposed so
- * that code can re-use @ref u_session as a base class.
+ * that code can reuse @ref u_session as a base class.
  *
  * @public @memberof u_session
  * @ingroup aux_util
@@ -66,7 +66,7 @@ u_session_create(struct u_system *usys);
 
 /*!
  * Push an event to this session. This function is exposed so that code can
- * re-use @ref u_session as a base class.
+ * reuse @ref u_session as a base class.
  *
  *
  * @public @memberof u_session