diff --git a/README-hacking.md b/README-hacking.md
index 2e64692..3bba118 100644
--- a/README-hacking.md
+++ b/README-hacking.md
@@ -44,7 +44,7 @@
 of Colorama.
 
 The kinds of submissions we would encourage work towards that goal, or fix
-bugs, or improve compatibility across operating systems or environements.
+bugs, or improve compatibility across operating systems or environments.
 
 ## Makefile and PowerShell scripts