diff --git a/boards/nxp/mr-canhubk3/src/board_config.h b/boards/nxp/mr-canhubk3/src/board_config.h
index 856016d9d3..ccc339846d 100644
--- a/boards/nxp/mr-canhubk3/src/board_config.h
+++ b/boards/nxp/mr-canhubk3/src/board_config.h
@@ -104,7 +104,7 @@ __BEGIN_DECLS
 
 /* User peripheral configuration structure 0 */
 
-extern const struct peripheral_clock_config_s g_peripheral_clockconfig0[];
+extern const struct peripheral_clock_config_s g_peripheral_clockconfig0[NUM_OF_PERIPHERAL_CLOCKS_0];
 
 /****************************************************************************
  * Public Function Prototypes
diff --git a/boards/nxp/mr-canhubk3/src/s32k3xx_periphclocks.c b/boards/nxp/mr-canhubk3/src/s32k3xx_periphclocks.c
index 0f07536842..a6e5264cd0 100644
--- a/boards/nxp/mr-canhubk3/src/s32k3xx_periphclocks.c
+++ b/boards/nxp/mr-canhubk3/src/s32k3xx_periphclocks.c
@@ -41,7 +41,7 @@
  * This is needed to establish the initial peripheral clocking.
  */
 
-const struct peripheral_clock_config_s g_peripheral_clockconfig0[] = {
+const struct peripheral_clock_config_s g_peripheral_clockconfig0[NUM_OF_PERIPHERAL_CLOCKS_0] = {
 	{
 		.clkname = FLEXCAN0_CLK,
 #ifdef CONFIG_S32K3XX_FLEXCAN0