diff --git a/extra/mongodb/operations/operations.factor b/extra/mongodb/operations/operations.factor
index a53e00858f..d1c294ff67 100644
--- a/extra/mongodb/operations/operations.factor
+++ b/extra/mongodb/operations/operations.factor
@@ -1,9 +1,10 @@
 USING: accessors assocs bson.reader bson.writer byte-arrays
-byte-vectors combinators formatting fry io io.binary
-io.encodings.private io.encodings.binary io.encodings.string
-io.encodings.utf8 io.encodings.utf8.private io.files kernel
-locals math mongodb.msg namespaces sequences uuid
-bson.writer.private ;
+byte-vectors combinators formatting fry io io.binary io.encodings.private
+io.encodings.binary io.encodings.string io.encodings.utf8 io.encodings.utf8.private io.files
+kernel locals math mongodb.msg namespaces sequences uuid bson.writer.private ;
+
+FROM: mongodb.connection => connection-buffer ;
+FROM: alien => byte-length ;
 
 IN: mongodb.operations