diff --git a/mozilla/extensions/irc/ff/jar.mn b/mozilla/extensions/irc/ff/jar.mn
index cb1a16bf9d5..f50a69a6b41 100644
--- a/mozilla/extensions/irc/ff/jar.mn
+++ b/mozilla/extensions/irc/ff/jar.mn
@@ -1,4 +1,4 @@
-# The registation of the overlays specific to Firefox below should match
+# The registration of the overlays specific to Firefox below should match
 # the ../xul/content/ff/contents.rdf file.
 chatzilla.jar:
 % content chatzilla-ff %content/chatzilla/ff/
diff --git a/mozilla/extensions/irc/sm/jar.mn b/mozilla/extensions/irc/sm/jar.mn
index 080a4e86343..eabf92c6f00 100644
--- a/mozilla/extensions/irc/sm/jar.mn
+++ b/mozilla/extensions/irc/sm/jar.mn
@@ -1,4 +1,4 @@
-# The registation of the overlays specific to SeaMonkey below should match
+# The registration of the overlays specific to SeaMonkey below should match
 # the ../xul/content/sm/contents.rdf file.
 chatzilla.jar:
 % content chatzilla-sm %content/chatzilla/sm/