diff --git a/README b/README
index 800adba852c..f6469399ac5 100644
--- a/README
+++ b/README
@@ -184,8 +184,8 @@ having problems that might be caused by a bug in Biopython, it is possible
 that it has already been identified. Update to the latest release if you are
 not using it already, and retry. If the problem persists, please search our
 bug database and our mailing lists to see if it has already been reported
-(and hopefully fixed), and if not please do report the bug. We can't fix
-problems we don't know about ;)
+(and hopefully fixed), and if not please do report the bug. We cannot fix
+problems we do not know about ;)
 
 * Old issue tracker: https://redmine.open-bio.org/projects/biopython
 * Current issue tracker: https://github.com/biopython/biopython/issues