diff --git a/apps/ir_uart_test1/ir_uart_test1.c b/apps/ir_uart_test1/ir_uart_test1.c
index 11b9091..0a007c9 100644
--- a/apps/ir_uart_test1/ir_uart_test1.c
+++ b/apps/ir_uart_test1/ir_uart_test1.c
@@ -1,7 +1,7 @@
 /** @file   ir_uart_test1.c
     @author M. P. Hayes, UCECE
     @date   24 August 2009
-    @brief  Test program for IR serial communnications.
+    @brief  Test program for IR serial communications.
 
     @defgroup ir_uart_test1 Test program for IR serial communications.
 */
diff --git a/apps/ir_uart_test2/ir_uart_test2.c b/apps/ir_uart_test2/ir_uart_test2.c
index e552167..fdd8c41 100644
--- a/apps/ir_uart_test2/ir_uart_test2.c
+++ b/apps/ir_uart_test2/ir_uart_test2.c
@@ -1,7 +1,7 @@
 /** @file   ir_uart_test2.c
     @author M. P. Hayes, UCECE
     @date   24 August 2009
-    @brief  Test program for IR serial communnications.
+    @brief  Test program for IR serial communications.
 
     @defgroup ir_uart_test2 Test program for IR serial communications.
 */