diff --git a/drivers/hwinfo/hwinfo_gecko.c b/drivers/hwinfo/hwinfo_gecko.c
index 9b772e373cd..207662b40bb 100644
--- a/drivers/hwinfo/hwinfo_gecko.c
+++ b/drivers/hwinfo/hwinfo_gecko.c
@@ -11,12 +11,13 @@
 #include <string.h>
 #include <sys/byteorder.h>
 
-#define HAS_BROWNOUT (defined(RMU_RSTCAUSE_BODUNREGRST)
-	|| defined(RMU_RSTCAUSE_BODREGRST)
-	|| defined(RMU_RSTCAUSE_AVDDBOD) || defined(RMU_RSTCAUSE_DVDDBOD)
-	|| defined(RMU_RSTCAUSE_DECBOD) || defined(RMU_RSTCAUSE_BODAVDD0)
-	|| defined(RMU_RSTCAUSE_BODAVDD1)
-	|| (defined(BU_PRESENT) && defined(_SILICON_LABS_32B_SERIES_0)))
+#if defined(RMU_RSTCAUSE_BODUNREGRST) || defined(RMU_RSTCAUSE_BODREGRST) || \
+    defined(RMU_RSTCAUSE_AVDDBOD) || defined(RMU_RSTCAUSE_DVDDBOD) || \
+    defined(RMU_RSTCAUSE_DECBOD) || defined(RMU_RSTCAUSE_BODAVDD0) || \
+    defined(RMU_RSTCAUSE_BODAVDD1) || \
+    (defined(BU_PRESENT) && defined(_SILICON_LABS_32B_SERIES_0))
+#define HAS_BROWNOUT 1
+#endif
 
 ssize_t z_impl_hwinfo_get_device_id(uint8_t *buffer, size_t length)
 {