diff --git a/Half-Life Source.md b/Half-Life Source.md
index 44da17d..eeb1fa2 100644
--- a/Half-Life Source.md	
+++ b/Half-Life Source.md	
@@ -91,7 +91,7 @@ One massively missed opportunity was to not use cubemaps for the majority of env
 - Subtransit: Is fine.
 - Undertow: Is fine.
 
-Where is gasworks? This map was avaiable with Half-Life 1.
+Where is gasworks? This map was available with Half-Life 1.
 
 Port over the Further Data content? Dario made some really great maps for HL post-release. Where are they???