diff --git a/arch/arm/src/imxrt/imxrt_ocotp.c b/arch/arm/src/imxrt/imxrt_ocotp.c
index 091aa2b7f4..0c997b831a 100644
--- a/arch/arm/src/imxrt/imxrt_ocotp.c
+++ b/arch/arm/src/imxrt/imxrt_ocotp.c
@@ -63,12 +63,12 @@
  * Private Function
  ****************************************************************************/
 
-static inline void imxrt_ocotp_reset_errors()
+static inline void imxrt_ocotp_reset_errorsvoid(void)
 {
   putreg32(OCOTP_CTRL_ERROR, IMXRT_OCOTP_CTRL_CLR);
 }
 
-static void imxrt_ocotp_initialize()
+static void imxrt_ocotp_initialize(void)
 {
   static bool once = false;
   uint32_t read;