diff --git a/extra/modules/rpc-server/rpc-server.factor b/extra/modules/rpc-server/rpc-server.factor
index c079f485d4..ffc2e404db 100644
--- a/extra/modules/rpc-server/rpc-server.factor
+++ b/extra/modules/rpc-server/rpc-server.factor
@@ -1,3 +1,5 @@
+! Copyright (C) 2009 Sam Anklesaria.
+! See http://factorcode.org/license.txt for BSD license.
 USING: accessors assocs concurrency.distributed
 concurrency.messaging continuations effects init kernel
 namespaces sequences sets threads vocabs vocabs.parser ;
diff --git a/extra/modules/rpc/rpc.factor b/extra/modules/rpc/rpc.factor
index e088ab2844..724a779f7e 100644
--- a/extra/modules/rpc/rpc.factor
+++ b/extra/modules/rpc/rpc.factor
@@ -1,3 +1,5 @@
+! Copyright (C) 2009 Sam Anklesaria.
+! See http://factorcode.org/license.txt for BSD license.
 USING: accessors assocs concurrency.distributed
 concurrency.messaging fry generalizations io.sockets kernel
 locals namespaces parser sequences vocabs vocabs.parser words ;
diff --git a/extra/modules/using/using.factor b/extra/modules/using/using.factor
index 2e4a097510..5a13f58587 100644
--- a/extra/modules/using/using.factor
+++ b/extra/modules/using/using.factor
@@ -1,3 +1,5 @@
+! Copyright (C) 2009 Sam Anklesaria.
+! See http://factorcode.org/license.txt for BSD license.
 USING: kernel modules.rpc peg peg-lexer peg.ebnf sequences
 strings vocabs.parser ;
 IN: modules.using