diff --git a/core/src/main/resources/cucumber/api/cli/USAGE.txt b/core/src/main/resources/cucumber/api/cli/USAGE.txt
index f216f6cd1c..a24171f789 100644
--- a/core/src/main/resources/cucumber/api/cli/USAGE.txt
+++ b/core/src/main/resources/cucumber/api/cli/USAGE.txt
@@ -19,7 +19,7 @@ Options:
   -n, --name REGEXP                      Only run scenarios whose names match REGEXP.
   -d, --[no-]-dry-run                    Skip execution of glue code.
   -m, --[no-]-monochrome                 Don't colour terminal output.
-  -s, --[no-]-strict                     Treat undefined and pending steps as errors.
+  -s, --[no-]-strict                     Treat undefined, pending and ambiguous steps as errors.
       --snippets [underscore|camelcase]  Naming convention for generated snippets.
                                          Defaults to underscore.
   -v, --version                          Print version.