diff --git a/README.md b/README.md
index 01bec30c..9d2aa661 100644
--- a/README.md
+++ b/README.md
@@ -838,6 +838,8 @@ Usage: cloc [options] <file(s)/dir(s)/git hash(es)> | <set 1> <se
                              See also --unix, --show-os.
 
  Filter Options
+   --include-content=<regex> Only count files containing text that matches the
+                             given regular expression.
    --exclude-content=<regex> Exclude files containing text that matches the given
                              regular expression.
    --exclude-dir=<D1>[,D2,]  Exclude the given comma separated directories