diff --git a/sc2/src/uqm/netplay/packet.h b/sc2/src/uqm/netplay/packet.h
index 279a2f461..4d8d98e34 100644
--- a/sc2/src/uqm/netplay/packet.h
+++ b/sc2/src/uqm/netplay/packet.h
@@ -136,7 +136,7 @@ typedef struct {
 	uint32 id;
 } Packet_Ping;
 
-// Acknowldement of a Ping.
+// Acknowledgement of a Ping.
 typedef struct {
 	PacketHeader header;
 	uint32 id;