diff --git a/examples/platform/silabs/efr32/rs911x/hal/efx_spi.c b/examples/platform/silabs/efr32/rs911x/hal/efx_spi.c
index 183e468b5befed..9b7ec6b3f39c36 100644
--- a/examples/platform/silabs/efr32/rs911x/hal/efx_spi.c
+++ b/examples/platform/silabs/efr32/rs911x/hal/efx_spi.c
@@ -47,6 +47,7 @@
 #include "event_groups.h"
 #include "task.h"
 
+#include "silabs_utils.h"
 #include "wfx_host_events.h"
 #include "wfx_rsi.h"