diff --git a/docs/source/upgrading/5.1-5.2.rst b/docs/source/upgrading/5.1-5.2.rst
index 739cc90521..656782b0c9 100644
--- a/docs/source/upgrading/5.1-5.2.rst
+++ b/docs/source/upgrading/5.1-5.2.rst
@@ -109,7 +109,7 @@ The following macro definitions have been removed for esp8266:
 - ``FLASH_WORK_SEC_COUNT``
 - ``INTERNAL_FLASH_SIZE``
 
-These related to the fixed system paramter block at the end of flash memory.
+These related to the fixed system parameter block at the end of flash memory.
 With partitions this is relocatable so any code which depends on these will be wrong.
 
 
diff --git a/samples/Wifi_Sniffer/app/application.cpp b/samples/Wifi_Sniffer/app/application.cpp
index d5c71d2fd0..d1144fab1a 100644
--- a/samples/Wifi_Sniffer/app/application.cpp
+++ b/samples/Wifi_Sniffer/app/application.cpp
@@ -91,7 +91,7 @@ void onBeacon(const BeaconInfo& beacon)
 void onClient(const ClientInfo& client)
 {
 	if(knownClients.indexOf(client.station) >= 0) {
-		// Allready listed
+		// Already listed
 		return;
 	}