diff --git a/src/modules/px4iofirmware/dsm.c b/src/modules/px4iofirmware/dsm.c
index dc544d991e..4339766568 100644
--- a/src/modules/px4iofirmware/dsm.c
+++ b/src/modules/px4iofirmware/dsm.c
@@ -243,7 +243,7 @@ dsm_init(const char *device)
 void
 dsm_bind(uint16_t cmd, int pulses)
 {
-#if !(defined(CONFIG_ARCH_BOARD_PX4IO_V1) && !defined(CONFIG_ARCH_BOARD_PX4IO_V2))
+#if !defined(CONFIG_ARCH_BOARD_PX4IO_V1) && !defined(CONFIG_ARCH_BOARD_PX4IO_V2)
 	#warning DSM BIND NOT IMPLEMENTED ON UNKNOWN PLATFORM
 #else
 	const uint32_t usart1RxAsOutp =