diff --git a/libs/libdsp/lib_motor_b16.c b/libs/libdsp/lib_motor_b16.c
index 899cd411c90..f32f4843526 100644
--- a/libs/libdsp/lib_motor_b16.c
+++ b/libs/libdsp/lib_motor_b16.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * control/lib_motor_b16.c
+ * libs/libdsp/lib_motor_b16.c
  *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
diff --git a/libs/libdsp/lib_observer.c b/libs/libdsp/lib_observer.c
index ce9b7dbca9a..8df03e3722d 100644
--- a/libs/libdsp/lib_observer.c
+++ b/libs/libdsp/lib_observer.c
@@ -110,7 +110,7 @@ void motor_observer_smo_init(FAR struct motor_observer_smo_f32_s *smo,
 
   /* Store inverted err_max to avoid division */
 
-  smo->one_by_err_max = (1.0f/err_max);
+  smo->one_by_err_max = (1.0f / err_max);
 }
 
 /****************************************************************************