diff --git a/arch/c5471/src/up_createstack.c b/arch/c5471/src/up_createstack.c
index 7903ee8b8b0..5af781c51b0 100644
--- a/arch/c5471/src/up_createstack.c
+++ b/arch/c5471/src/up_createstack.c
@@ -69,7 +69,7 @@
  *     processor, etc.  This value is retained only for debug
  *     purposes.
  *   stack_alloc_ptr: Pointer to allocated stack
- *   adj_stack_ptr: Adjusted StatckAllocPtr for HW.  The
+ *   adj_stack_ptr: Adjusted stack_alloc_ptr for HW.  The
  *     initial value of the stack pointer.
  *
  * Inputs:
diff --git a/arch/c5471/src/up_usestack.c b/arch/c5471/src/up_usestack.c
index 31531456959..db2c1796e78 100644
--- a/arch/c5471/src/up_usestack.c
+++ b/arch/c5471/src/up_usestack.c
@@ -69,7 +69,7 @@
  *     processor, etc.  This value is retained only for debug
  *     purposes.
  *   stack_alloc_ptr: Pointer to allocated stack
- *   adj_stack_ptr: Adjusted StatckAllocPtr for HW.  The
+ *   adj_stack_ptr: Adjusted stack_alloc_ptr for HW.  The
  *     initial value of the stack pointer.
  *
  * Inputs:
diff --git a/arch/dm320/src/up_createstack.c b/arch/dm320/src/up_createstack.c
index 0e1f0690afc..b3a0b66a802 100644
--- a/arch/dm320/src/up_createstack.c
+++ b/arch/dm320/src/up_createstack.c
@@ -69,7 +69,7 @@
  *     processor, etc.  This value is retained only for debug
  *     purposes.
  *   stack_alloc_ptr: Pointer to allocated stack
- *   adj_stack_ptr: Adjusted StatckAllocPtr for HW.  The
+ *   adj_stack_ptr: Adjusted stack_alloc_ptr for HW.  The
  *     initial value of the stack pointer.
  *
  * Inputs:
diff --git a/arch/dm320/src/up_usestack.c b/arch/dm320/src/up_usestack.c
index 31531456959..db2c1796e78 100644
--- a/arch/dm320/src/up_usestack.c
+++ b/arch/dm320/src/up_usestack.c
@@ -69,7 +69,7 @@
  *     processor, etc.  This value is retained only for debug
  *     purposes.
  *   stack_alloc_ptr: Pointer to allocated stack
- *   adj_stack_ptr: Adjusted StatckAllocPtr for HW.  The
+ *   adj_stack_ptr: Adjusted stack_alloc_ptr for HW.  The
  *     initial value of the stack pointer.
  *
  * Inputs:
diff --git a/arch/sim/src/up_createstack.c b/arch/sim/src/up_createstack.c
index 845c766618d..c56e7a1a9dd 100644
--- a/arch/sim/src/up_createstack.c
+++ b/arch/sim/src/up_createstack.c
@@ -71,7 +71,7 @@
  *     processor, etc.  This value is retained only for debug
  *     purposes.
  *   stack_alloc_ptr: Pointer to allocated stack
- *   adj_stack_ptr: Adjusted StatckAllocPtr for HW.  The
+ *   adj_stack_ptr: Adjusted stack_alloc_ptr for HW.  The
  *     initial value of the stack pointer.
  *
  * Inputs:
diff --git a/arch/sim/src/up_usestack.c b/arch/sim/src/up_usestack.c
index ca1c2ac535c..d8964b64421 100644
--- a/arch/sim/src/up_usestack.c
+++ b/arch/sim/src/up_usestack.c
@@ -72,7 +72,7 @@
  *     processor, etc.  This value is retained only for debug
  *     purposes.
  *   stack_alloc_ptr: Pointer to allocated stack
- *   adj_stack_ptr: Adjusted StatckAllocPtr for HW.  The
+ *   adj_stack_ptr: Adjusted stack_alloc_ptr for HW.  The
  *     initial value of the stack pointer.
  *
  * Inputs: