diff --git a/README.md b/README.md
index 5f5b975..fb81980 100644
--- a/README.md
+++ b/README.md
@@ -20,6 +20,6 @@ pip install -r requirements.txt
 
 Dependencies are only `dnspython` and optionnally `iso8601` which is only
 required in re2oAPI.  The script runs fine with just `dnspython` as long as it
-does not stuple upon an error in the re2oAPI, which is should not according the
+does not stumble upon an error in the re2oAPI, which is should not according the
 tests.