diff --git a/cpu/qn908x/periph/rtc.c b/cpu/qn908x/periph/rtc.c
index 11b948e3b6..4ea0fdf271 100644
--- a/cpu/qn908x/periph/rtc.c
+++ b/cpu/qn908x/periph/rtc.c
@@ -30,7 +30,7 @@
 
 #include "vendor/drivers/fsl_clock.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 
diff --git a/cpu/qn908x/periph/timer.c b/cpu/qn908x/periph/timer.c
index 775abb5d3c..22745e0792 100644
--- a/cpu/qn908x/periph/timer.c
+++ b/cpu/qn908x/periph/timer.c
@@ -32,7 +32,7 @@
 
 #include "vendor/drivers/fsl_clock.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /**
diff --git a/cpu/qn908x/periph/uart.c b/cpu/qn908x/periph/uart.c
index 527890b169..cabf0e3047 100644
--- a/cpu/qn908x/periph/uart.c
+++ b/cpu/qn908x/periph/uart.c
@@ -33,7 +33,7 @@
 
 #include "vendor/drivers/fsl_clock.h"
 
-#define ENABLE_DEBUG (0)
+#define ENABLE_DEBUG 0
 #include "debug.h"
 
 /**