diff --git a/src/Make_os2.mak b/src/Make_os2.mak
index e90f23e..a0cc890 100644
--- a/src/Make_os2.mak
+++ b/src/Make_os2.mak
@@ -4,7 +4,7 @@
 # Created by: Paul Slootman
 #
 
-### This Makefile has been succesfully tested on these systems.
+### This Makefile has been successfully tested on these systems.
 ### Check the (*) column for remarks, listed below.
 ### Later code changes may cause small problems, otherwise Vim is supposed to
 ### compile and run without problems.