1 files changed, 2 insertions, 0 deletions
diff --git a/gf.cabal b/gf.cabal
index 14af50bed..0a6952e4c 100644
--- a/gf.cabal
+++ b/gf.cabal
@@ -46,6 +46,8 @@ library
     PGF.Probabilistic
     PGF.Forest
     PGF.Optimize
+    PGF.Signature
+    PGF.ToAPI
     GF.Data.TrieMap
     GF.Data.Utilities
     GF.Data.SortedList