diff --git a/History.markdown b/History.markdown
index a86b4399..7a73bcd0 100644
--- a/History.markdown
+++ b/History.markdown
@@ -135,6 +135,7 @@
   * filters: `where` should compare stringified versions of input & comparator (#3935)
   * Read build options for `jekyll clean` command (#3828)
   * Fix #3970: Use Gem::Version to compare versions, not >.
+  * Abort if no subcommand. Fixes confusing message. (#3992)
 
 ### Development Fixes