diff --git a/include/gtp_packet.hrl b/include/gtp_packet.hrl
index e99df41..0ad7173 100644
--- a/include/gtp_packet.hrl
+++ b/include/gtp_packet.hrl
@@ -747,7 +747,9 @@
 }).
 
 -record(private_extension, {
-	  instance = 0
+	  instance = 0,
+	  enterprise_id = 0,
+	  value = <<>>
 }).
 
 %% -include("gtp_packet_v2_gen.hrl").
diff --git a/priv/ie_gen_v1.erl b/priv/ie_gen_v1.erl
index 4b089de..9ed38e2 100755
--- a/priv/ie_gen_v1.erl
+++ b/priv/ie_gen_v1.erl
@@ -433,7 +433,8 @@ ies() ->
      {254, "Address of Recommended Node", '_',
       [{"Address", 0, binary}]},
      {255, "Private Extension", '_',
-      []}
+      [{"Enterprise Id", 16, integer},
+       {"Value", 0, binary}]}
     ].
 
 msgs() ->
diff --git a/src/gtp_packet.erl b/src/gtp_packet.erl
index 8ffd12f..9d6d93b 100644
--- a/src/gtp_packet.erl
+++ b/src/gtp_packet.erl
@@ -1897,8 +1897,11 @@ decode_v1_element(<<M_address/binary>>, 254, Instance) ->
     #address_of_recommended_node{instance = Instance,
 				 address = M_address};
 
-decode_v1_element(<<>>, 255, Instance) ->
-    #private_extension{instance = Instance};
+decode_v1_element(<<M_enterprise_id:16/integer,
+		    M_value/binary>>, 255, Instance) ->
+    #private_extension{instance = Instance,
+		       enterprise_id = M_enterprise_id,
+		       value = M_value};
 
 decode_v1_element(Value, Tag, Instance) ->
     {Tag, Instance, Value}.
@@ -2723,8 +2726,11 @@ encode_v1_element(#address_of_recommended_node{
     encode_v1_element(254, Instance, <<M_address/binary>>);
 
 encode_v1_element(#private_extension{
-		     instance = Instance}) ->
-    encode_v1_element(255, Instance, <<>>);
+		     instance = Instance,
+		     enterprise_id = M_enterprise_id,
+		     value = M_value}) ->
+    encode_v1_element(255, Instance, <<M_enterprise_id:16,
+				       M_value/binary>>);
 
 encode_v1_element({Tag, Instance, Value}) when is_integer(Tag), is_integer(Instance), is_binary(Value) ->
     encode_v1_element(Tag, Instance, Value).
diff --git a/test/property_test/gtplib_prop.erl b/test/property_test/gtplib_prop.erl
index 6579c97..e8598de 100644
--- a/test/property_test/gtplib_prop.erl
+++ b/test/property_test/gtplib_prop.erl
@@ -1612,7 +1612,8 @@ gen_address_of_recommended_node() ->
 
 gen_private_extension() ->
     #private_extension{
-       instance = instance()
+       instance = instance(),
+       value = binary()
       }.
 
 %% v2 generator ==========================================================================