diff --git a/arch/arm/src/common/up_puts.c b/arch/arm/src/common/up_puts.c
index f56dbf07e57..4d47ca2aa30 100644
--- a/arch/arm/src/common/up_puts.c
+++ b/arch/arm/src/common/up_puts.c
@@ -68,8 +68,9 @@
 
 void up_puts(const char *str)
 {
-  while(*str)
+  while (*str)
     {
       up_putc(*str++);
     }
 }
+
diff --git a/arch/arm/src/kl/Make.defs b/arch/arm/src/kl/Make.defs
index 4bbc09f2d97..9553a90dbb6 100644
--- a/arch/arm/src/kl/Make.defs
+++ b/arch/arm/src/kl/Make.defs
@@ -41,7 +41,7 @@ CMN_ASRCS += up_switchcontext.S vfork.S
 CMN_CSRCS  = up_allocateheap.c up_assert.c up_blocktask.c up_copyfullstate.c
 CMN_CSRCS += up_createstack.c up_mdelay.c up_udelay.c up_exit.c
 CMN_CSRCS += up_initialize.c up_initialstate.c up_interruptcontext.c
-CMN_CSRCS += up_modifyreg8.c up_modifyreg16.c up_modifyreg32.c
+CMN_CSRCS += up_puts.c up_modifyreg8.c up_modifyreg16.c up_modifyreg32.c
 CMN_CSRCS += up_releasepending.c up_releasestack.c up_reprioritizertr.c
 CMN_CSRCS += up_schedulesigaction.c up_sigdeliver.c up_systemreset.c
 CMN_CSRCS += up_unblocktask.c up_usestack.c up_doirq.c up_hardfault.c
diff --git a/include/nuttx/arch.h b/include/nuttx/arch.h
index fa89d83448b..6522c6208e5 100644
--- a/include/nuttx/arch.h
+++ b/include/nuttx/arch.h
@@ -1121,6 +1121,16 @@ int up_putc(int ch);
 
 int up_getc(void);
 
+/****************************************************************************
+ * Name: up_puts
+ *
+ * Description:
+ *   Output a string on the console
+ *
+ ****************************************************************************/
+
+void up_puts(FAR const char *str);
+
 #ifdef __cplusplus
 }
 #endif