diff --git a/arch/arc/include/nano_private.h b/arch/arc/include/nano_private.h
index b3a6d5ad793..19d0c4ef594 100644
--- a/arch/arc/include/nano_private.h
+++ b/arch/arc/include/nano_private.h
@@ -137,8 +137,8 @@ typedef struct callee_saved tCalleeSaved;
 #define FIBER          0x000
 #define TASK           0x001 /* 1 = task, 0 = fiber   */
 
-#define INT_ACTIVE     0x002 /* 1 = execution context is interrupt handler */
-#define EXC_ACTIVE     0x004 /* 1 = executino context is exception handler */
+#define INT_ACTIVE     0x002 /* 1 = executing context is interrupt handler */
+#define EXC_ACTIVE     0x004 /* 1 = executing context is exception handler */
 #define USE_FP         0x010 /* 1 = thread uses floating point unit */
 #define PREEMPTIBLE    0x020 /* 1 = preemptible thread */
 #define ESSENTIAL      0x200 /* 1 = system thread that must not abort */
diff --git a/arch/arm/include/nano_private.h b/arch/arm/include/nano_private.h
index 5d8ddc64e7f..6be231a8e4e 100644
--- a/arch/arm/include/nano_private.h
+++ b/arch/arm/include/nano_private.h
@@ -95,8 +95,8 @@ typedef struct preempt tPreempt;
 
 #define FIBER 0x000
 #define TASK 0x001	   /* 1 = task, 0 = fiber   */
-#define INT_ACTIVE 0x002     /* 1 = executino context is interrupt handler */
-#define EXC_ACTIVE 0x004     /* 1 = executino context is exception handler */
+#define INT_ACTIVE 0x002     /* 1 = executing context is interrupt handler */
+#define EXC_ACTIVE 0x004     /* 1 = executing context is exception handler */
 #define USE_FP 0x010	 /* 1 = thread uses floating point unit */
 #define PREEMPTIBLE                                            \
 	0x020 /* 1 = preemptible thread                       \
diff --git a/arch/nios2/include/nano_private.h b/arch/nios2/include/nano_private.h
index fecb29c8b6c..a629d4bd753 100644
--- a/arch/nios2/include/nano_private.h
+++ b/arch/nios2/include/nano_private.h
@@ -50,8 +50,8 @@ extern "C" {
 #define FIBER          0x000
 #define TASK           0x001 /* 1 = task, 0 = fiber   */
 
-#define INT_ACTIVE     0x002 /* 1 = execution context is interrupt handler */
-#define EXC_ACTIVE     0x004 /* 1 = executino context is exception handler */
+#define INT_ACTIVE     0x002 /* 1 = executing context is interrupt handler */
+#define EXC_ACTIVE     0x004 /* 1 = executing context is exception handler */
 #define USE_FP         0x010 /* 1 = thread uses floating point unit */
 #define PREEMPTIBLE    0x020 /* 1 = preemptible thread */
 #define ESSENTIAL      0x200 /* 1 = system thread that must not abort */