diff --git a/test/http/adapter/gun_test.exs b/test/http/adapter/gun_test.exs
index 37489e1a4..1d7977c83 100644
--- a/test/http/adapter/gun_test.exs
+++ b/test/http/adapter/gun_test.exs
@@ -101,7 +101,7 @@ test "get conn on next request" do
                assert opts[:conn] == nil
                assert opts[:close_conn] == nil
              end) =~
-               "Gun connections pool checkin was not succesfull. Trying to open conn for next request."
+               "Gun connections pool checkin was not successful. Trying to open conn for next request."
 
       opts = Gun.options(uri)