diff --git a/README.md b/README.md
index a1b828f..3f924ad 100644
--- a/README.md
+++ b/README.md
@@ -63,7 +63,7 @@ Define HX711 in your board `.overlay` like this example:
 };
 ```
 
-There are also optional output filter that you can enable and configure.
+There are also optional output filters that you can enable and configure.
 The first one is a median filter to discard any peak values.
 ```ini
 CONFIG_HX711_ENABLE_MEDIAN_FILTER=y
diff --git a/drivers/sensor/hx711/filters/ema.h b/drivers/sensor/hx711/filters/ema.h
index 7107f16..c671e16 100644
--- a/drivers/sensor/hx711/filters/ema.h
+++ b/drivers/sensor/hx711/filters/ema.h
@@ -1,5 +1,5 @@
-#ifndef ZEPHYR_DRIVERS_SENSOR_HX711_MEDIAN_FILTER_H__EMA_FILTER_H_
-#define ZEPHYR_DRIVERS_SENSOR_HX711_MEDIAN_FILTER_H__EMA_FILTER_H_
+#ifndef ZEPHYR_DRIVERS_SENSOR_HX711_EMA_FILTER_H_
+#define ZEPHYR_DRIVERS_SENSOR_HX711_EMA_FILTER_H_
 
 #include <stdint.h>
 
@@ -13,4 +13,4 @@ void ema_filter_init(ema_filter_t *f, int alpha, double initial_value);
 void ema_filter_reset(ema_filter_t *f, double initial_value);
 int32_t ema_filter_update(ema_filter_t *f, int32_t measurement);
 
-#endif /* ZEPHYR_DRIVERS_SENSOR_HX711_MEDIAN_FILTER_H__EMA_FILTER_H_ */
\ No newline at end of file
+#endif /* ZEPHYR_DRIVERS_SENSOR_HX711_EMA_FILTER_H_ */
\ No newline at end of file