diff --git a/FediChord.asn1 b/FediChord.asn1
index 7c53cb0..dda8bdc 100644
--- a/FediChord.asn1
+++ b/FediChord.asn1
@@ -10,8 +10,8 @@ Request ::= SEQUENCE {
 	action			Action,
 	requestID		INTEGER,
 	sender			NodeState,
-	parts			INTEGER (0..150),	-- number of message parts
-	part			INTEGER (0..150),	-- part number of this message, starts at 1
+	parts			INTEGER (1..150),	-- number of message parts
+	part			INTEGER (1..150),	-- part number of this message, starts at 1
 	actionPayload	CHOICE {
 		queryIDRequestPayload		QueryIDRequestPayload,
 		joinRequestPayload			JoinRequestPayload,
diff --git a/src/Hash2Pub/ProtocolTypes.hs b/src/Hash2Pub/ProtocolTypes.hs
index de51fad..c7453ab 100644
--- a/src/Hash2Pub/ProtocolTypes.hs
+++ b/src/Hash2Pub/ProtocolTypes.hs
@@ -23,7 +23,7 @@ data FediChordMessage = Request
     , sender    :: NodeState
     , parts     :: Integer
     , part      :: Integer
-    -- ^ part starts at 0
+    -- ^ part starts at 1
     , action    :: Action
     , payload   :: Maybe ActionPayload
     }