diff --git a/EXCEPTION b/EXCEPTION
index 9f220df..9da0a14 100644
--- a/EXCEPTION
+++ b/EXCEPTION
@@ -5,7 +5,7 @@ include following exception to GNU GPL.
 --------------------
 As additional permission under GNU GPL version 3 section 7, you may
 distribute non-source form of the Program without the copy of the GNU
-GPL normally required by section 4, provided you inform the receipents
+GPL normally required by section 4, provided you inform the recipients
 of GNU GPL by a written offer.
 --------------------
 
diff --git a/chopstx-cortex-m.c b/chopstx-cortex-m.c
index f7e49fc..e5eab2c 100644
--- a/chopstx-cortex-m.c
+++ b/chopstx-cortex-m.c
@@ -24,7 +24,7 @@
  * As additional permission under GNU GPL version 3 section 7, you may
  * distribute non-source form of the Program without the copy of the
  * GNU GPL normally required by section 4, provided you inform the
- * receipents of GNU GPL by a written offer.
+ * recipients of GNU GPL by a written offer.
  *
  */
 
diff --git a/chopstx-gnu-linux.c b/chopstx-gnu-linux.c
index 9c63b97..07f9a7a 100644
--- a/chopstx-gnu-linux.c
+++ b/chopstx-gnu-linux.c
@@ -23,7 +23,7 @@
  * As additional permission under GNU GPL version 3 section 7, you may
  * distribute non-source form of the Program without the copy of the
  * GNU GPL normally required by section 4, provided you inform the
- * receipents of GNU GPL by a written offer.
+ * recipients of GNU GPL by a written offer.
  *
  */
 
diff --git a/chopstx.c b/chopstx.c
index 4d672c7..70217f6 100644
--- a/chopstx.c
+++ b/chopstx.c
@@ -23,7 +23,7 @@
  * As additional permission under GNU GPL version 3 section 7, you may
  * distribute non-source form of the Program without the copy of the
  * GNU GPL normally required by section 4, provided you inform the
- * receipents of GNU GPL by a written offer.
+ * recipients of GNU GPL by a written offer.
  *
  */
 
diff --git a/chopstx.h b/chopstx.h
index a36a74b..d42a071 100644
--- a/chopstx.h
+++ b/chopstx.h
@@ -22,7 +22,7 @@
  * As additional permission under GNU GPL version 3 section 7, you may
  * distribute non-source form of the Program without the copy of the
  * GNU GPL normally required by section 4, provided you inform the
- * receipents of GNU GPL by a written offer.
+ * recipients of GNU GPL by a written offer.
  *
  */
 
diff --git a/contrib/ackbtn-stm32f103.c b/contrib/ackbtn-stm32f103.c
index d06a5e2..dce7c62 100644
--- a/contrib/ackbtn-stm32f103.c
+++ b/contrib/ackbtn-stm32f103.c
@@ -22,7 +22,7 @@
  * As additional permission under GNU GPL version 3 section 7, you may
  * distribute non-source form of the Program without the copy of the
  * GNU GPL normally required by section 4, provided you inform the
- * receipents of GNU GPL by a written offer.
+ * recipients of GNU GPL by a written offer.
  *
  */
 
diff --git a/contrib/adc-gnu-linux.c b/contrib/adc-gnu-linux.c
index e71d7f9..cb689ae 100644
--- a/contrib/adc-gnu-linux.c
+++ b/contrib/adc-gnu-linux.c
@@ -24,7 +24,7 @@
  * As additional permission under GNU GPL version 3 section 7, you may
  * distribute non-source form of the Program without the copy of the
  * GNU GPL normally required by section 4, provided you inform the
- * receipents of GNU GPL by a written offer.
+ * recipients of GNU GPL by a written offer.
  *
  */
 
diff --git a/contrib/adc-mkl27z.c b/contrib/adc-mkl27z.c
index 37b81d0..a531084 100644
--- a/contrib/adc-mkl27z.c
+++ b/contrib/adc-mkl27z.c
@@ -25,7 +25,7 @@
  * As additional permission under GNU GPL version 3 section 7, you may
  * distribute non-source form of the Program without the copy of the
  * GNU GPL normally required by section 4, provided you inform the
- * receipents of GNU GPL by a written offer.
+ * recipients of GNU GPL by a written offer.
  *
  */
 
diff --git a/contrib/adc-stm32f103.c b/contrib/adc-stm32f103.c
index 750061e..65e3cf9 100644
--- a/contrib/adc-stm32f103.c
+++ b/contrib/adc-stm32f103.c
@@ -25,7 +25,7 @@
  * As additional permission under GNU GPL version 3 section 7, you may
  * distribute non-source form of the Program without the copy of the
  * GNU GPL normally required by section 4, provided you inform the
- * receipents of GNU GPL by a written offer.
+ * recipients of GNU GPL by a written offer.
  *
  */
 
diff --git a/contrib/usart-stm32f103.c b/contrib/usart-stm32f103.c
index 437754a..f0ddd06 100644
--- a/contrib/usart-stm32f103.c
+++ b/contrib/usart-stm32f103.c
@@ -22,7 +22,7 @@
  * As additional permission under GNU GPL version 3 section 7, you may
  * distribute non-source form of the Program without the copy of the
  * GNU GPL normally required by section 4, provided you inform the
- * receipents of GNU GPL by a written offer.
+ * recipients of GNU GPL by a written offer.
  *
  */
 
diff --git a/entry.c b/entry.c
index 21225de..8efb1b1 100644
--- a/entry.c
+++ b/entry.c
@@ -23,7 +23,7 @@
  * As additional permission under GNU GPL version 3 section 7, you may
  * distribute non-source form of the Program without the copy of the
  * GNU GPL normally required by section 4, provided you inform the
- * receipents of GNU GPL by a written offer.
+ * recipients of GNU GPL by a written offer.
  *
  */
 
diff --git a/eventflag.c b/eventflag.c
index c37b303..4b248ea 100644
--- a/eventflag.c
+++ b/eventflag.c
@@ -22,7 +22,7 @@
  * As additional permission under GNU GPL version 3 section 7, you may
  * distribute non-source form of the Program without the copy of the
  * GNU GPL normally required by section 4, provided you inform the
- * receipents of GNU GPL by a written offer.
+ * recipients of GNU GPL by a written offer.
  *
  */
 
diff --git a/mcu/clk_gpio_init-mkl27z.c b/mcu/clk_gpio_init-mkl27z.c
index 630fd0b..5d14242 100644
--- a/mcu/clk_gpio_init-mkl27z.c
+++ b/mcu/clk_gpio_init-mkl27z.c
@@ -22,7 +22,7 @@
  * As additional permission under GNU GPL version 3 section 7, you may
  * distribute non-source form of the Program without the copy of the
  * GNU GPL normally required by section 4, provided you inform the
- * receipents of GNU GPL by a written offer.
+ * recipients of GNU GPL by a written offer.
  *
  */
 
diff --git a/mcu/clk_gpio_init-stm32.c b/mcu/clk_gpio_init-stm32.c
index 9f1bab0..adc2a70 100644
--- a/mcu/clk_gpio_init-stm32.c
+++ b/mcu/clk_gpio_init-stm32.c
@@ -22,7 +22,7 @@
  * As additional permission under GNU GPL version 3 section 7, you may
  * distribute non-source form of the Program without the copy of the
  * GNU GPL normally required by section 4, provided you inform the
- * receipents of GNU GPL by a written offer.
+ * recipients of GNU GPL by a written offer.
  *
  */
 
diff --git a/mcu/usb-mkl27z.c b/mcu/usb-mkl27z.c
index d3fb2fe..082b4fa 100644
--- a/mcu/usb-mkl27z.c
+++ b/mcu/usb-mkl27z.c
@@ -22,7 +22,7 @@
  * As additional permission under GNU GPL version 3 section 7, you may
  * distribute non-source form of the Program without the copy of the
  * GNU GPL normally required by section 4, provided you inform the
- * receipents of GNU GPL by a written offer.
+ * recipients of GNU GPL by a written offer.
  *
  */
 
diff --git a/mcu/usb-stm32f103.c b/mcu/usb-stm32f103.c
index 79a7bfa..3d9c250 100644
--- a/mcu/usb-stm32f103.c
+++ b/mcu/usb-stm32f103.c
@@ -22,7 +22,7 @@
  * As additional permission under GNU GPL version 3 section 7, you may
  * distribute non-source form of the Program without the copy of the
  * GNU GPL normally required by section 4, provided you inform the
- * receipents of GNU GPL by a written offer.
+ * recipients of GNU GPL by a written offer.
  *
  */