diff --git a/_oasis b/_oasis
index 7d9aba04..5dbd2c89 100644
--- a/_oasis
+++ b/_oasis
@@ -43,12 +43,13 @@ Flag "bench"
 
 Library "containers"
   Path:             core
-  Modules:          CCVector, CCDeque, CCGen, Gen_intf, CCSequence, CCFQueue, CCMultiMap,
+  Modules:          CCVector, CCDeque, CCGen, CCSequence, CCFQueue, CCMultiMap,
                     CCMultiSet, CCBV, CCPrint, CCPersistentHashtbl, CCError,
                     CCHeap, CCList, CCOpt, CCPair, CCFun, CCHash,
                     CCKList, CCInt, CCBool, CCFloat, CCArray, CCOrd, CCIO,
                     CCRandom, CCKTree, CCTrie, CCString, CCHashtbl,
                     CCFlatHashtbl, CCSexp, CCMap, CCCache
+  InternalModules:  Gen_intf
   BuildDepends:     bytes
 
 Library "containers_string"