1 files changed, 1 insertions, 0 deletions
diff --git a/doc.am b/doc.am
index 1980cc870e..e3a91cc36d 100644
--- a/doc.am
+++ b/doc.am
@@ -113,6 +113,7 @@ endef
 SUBCOMMANDS :=					\
   archive					\
   build						\
+  challenge					\
   download					\
   edit						\
   environment					\