diff --git a/arch/hc/src/common/hc_copystate.c b/arch/hc/src/common/hc_copystate.c
index 155aa9637f0..d7e62d2c71a 100644
--- a/arch/hc/src/common/hc_copystate.c
+++ b/arch/hc/src/common/hc_copystate.c
@@ -46,7 +46,7 @@
  ****************************************************************************/
 
 /****************************************************************************
- * Name: up_undefinedinsn
+ * Name: hc_copystate
  ****************************************************************************/
 
 /* A little faster than most memcpy's */
diff --git a/arch/renesas/src/common/renesas_internal.h b/arch/renesas/src/common/renesas_internal.h
index 7a93b67bd8a..16fdce1f9e0 100644
--- a/arch/renesas/src/common/renesas_internal.h
+++ b/arch/renesas/src/common/renesas_internal.h
@@ -147,7 +147,6 @@ void renesas_fullcontextrestore(uint32_t *regs) noreturn_function;
 void renesas_prefetchabort(uint32_t *regs);
 void renesas_sigdeliver(void);
 void renesas_syscall(uint32_t *regs);
-void renesas_undefinedinsn(uint32_t *regs);
 void renesas_lowputc(char ch);
 void renesas_lowputs(const char *str);
 
diff --git a/arch/x86/src/common/x86_copystate.c b/arch/x86/src/common/x86_copystate.c
index 213177217aa..01ed581ca73 100644
--- a/arch/x86/src/common/x86_copystate.c
+++ b/arch/x86/src/common/x86_copystate.c
@@ -46,7 +46,7 @@
  ****************************************************************************/
 
 /****************************************************************************
- * Name: x86_undefinedinsn
+ * Name: x86_copystate
  ****************************************************************************/
 
 /* A little faster than most memcpy's */
diff --git a/arch/x86_64/src/common/x86_64_copystate.c b/arch/x86_64/src/common/x86_64_copystate.c
index 46fea2abf81..a460d09d6f6 100644
--- a/arch/x86_64/src/common/x86_64_copystate.c
+++ b/arch/x86_64/src/common/x86_64_copystate.c
@@ -46,7 +46,7 @@
  ****************************************************************************/
 
 /****************************************************************************
- * Name: x86_64_undefinedinsn
+ * Name: x86_64_copystate
  ****************************************************************************/
 
 /* A little faster than most memcpy's */