diff --git a/drivers/include/sen5x.h b/drivers/include/sen5x.h
index 66b871dfeb..6d8ff59ea8 100644
--- a/drivers/include/sen5x.h
+++ b/drivers/include/sen5x.h
@@ -6,8 +6,7 @@
  * directory for more details.
  */
 
-#ifndef SEN5X_H
-#define SEN5X_H
+#pragma once
 
 /**
  * @defgroup    drivers_sen5x Sensirion Embedded I2C SEN5x Driver
@@ -327,4 +326,3 @@ void sen5x_get_voc_state(const sen5x_t *dev, uint8_t *state, uint8_t state_size)
 #endif
 
 /** @} */
-#endif /* SEN5X_H */
diff --git a/drivers/sen5x/include/sen5x_constants.h b/drivers/sen5x/include/sen5x_constants.h
index bee25b3742..5978d11b34 100644
--- a/drivers/sen5x/include/sen5x_constants.h
+++ b/drivers/sen5x/include/sen5x_constants.h
@@ -6,8 +6,7 @@
  * directory for more details.
  */
 
-#ifndef SEN5X_CONSTANTS_H
-#define SEN5X_CONSTANTS_H
+#pragma once
 
 /**
  * @ingroup     drivers_sen5x
@@ -35,4 +34,3 @@ extern "C" {
 #endif
 
 /** @} */
-#endif /* SEN5X_CONSTANTS_H */
diff --git a/drivers/sen5x/include/sen5x_params.h b/drivers/sen5x/include/sen5x_params.h
index de181758fa..a97713c74e 100644
--- a/drivers/sen5x/include/sen5x_params.h
+++ b/drivers/sen5x/include/sen5x_params.h
@@ -6,8 +6,7 @@
  * directory for more details.
  */
 
-#ifndef SEN5X_PARAMS_H
-#define SEN5X_PARAMS_H
+#pragma once
 
 /**
  * @ingroup     drivers_sen5x
@@ -90,4 +89,3 @@ static const saul_reg_info_t sen5x_saul_info[] =
 #endif
 
 /** @} */
-#endif /* SEN5X_PARAMS_H */