diff --git a/include/dt-bindings/clock/kinetis_sim.h b/include/dt-bindings/clock/kinetis_sim.h
index 3202868e1e1..6c06928ec80 100644
--- a/include/dt-bindings/clock/kinetis_sim.h
+++ b/include/dt-bindings/clock/kinetis_sim.h
@@ -14,6 +14,7 @@
 #define KINETIS_SIM_LPO_CLK		19
 #define KINETIS_SIM_DMAMUX_CLK  KINETIS_SIM_BUS_CLK
 #define KINETIS_SIM_DMA_CLK     KINETIS_SIM_CORESYS_CLK
+#define KINETIS_SIM_SIM_SOPT7   7
 
 #define KINETIS_SIM_PLLFLLSEL_MCGFLLCLK	0
 #define KINETIS_SIM_PLLFLLSEL_MCGPLLCLK	1