diff --git a/src/SerializedObject.h b/src/SerializedObject.h
index 3c322486da..de9f3d2b7f 100644
--- a/src/SerializedObject.h
+++ b/src/SerializedObject.h
@@ -72,6 +72,7 @@ enum SOE_Field
 	sfNextTransitStart,
 	sfNickname,
 	sfOfferCurrency,
+	sfOfferMin,
 	sfPaths,
 	sfPubKey,
 	sfSendMax,
diff --git a/src/TransactionFormats.cpp b/src/TransactionFormats.cpp
index 66995e5a92..c0f2f73a51 100644
--- a/src/TransactionFormats.cpp
+++ b/src/TransactionFormats.cpp
@@ -44,6 +44,15 @@ TransactionFormat InnerTxnFormats[]=
 		{ S_FIELD(Extensions),		STI_TL,		 SOE_IFFLAG,   0x02000000 },
 		{ sfInvalid, NULL,			STI_DONE,	 SOE_NEVER,    -1 } }
 	},
+	{ "NicknameSet", ttNICKNAME_SET, {
+		{ S_FIELD(Flags),			STI_UINT32,  SOE_FLAGS,    0 },
+		{ S_FIELD(Nickname),		STI_HASH256, SOE_IFFLAG,   8 },
+		{ S_FIELD(OfferMin),		STI_AMOUNT,  SOE_IFFLAG,   1 },
+		{ S_FIELD(Signature),		STI_VL,		 SOE_IFFLAG,   2 },
+		{ S_FIELD(SourceTag),		STI_UINT32,  SOE_IFFLAG,   1 },
+		{ S_FIELD(Extensions),		STI_TL,		 SOE_IFFLAG,   0x02000000 },
+		{ sfInvalid, NULL,			STI_DONE,	 SOE_NEVER,    -1 } }
+	},
 	{ "Offer", ttOFFER, {
 		{ S_FIELD(Flags),			STI_UINT32,  SOE_FLAGS,    0 },
 		{ S_FIELD(AmountIn),		STI_AMOUNT,  SOE_REQUIRED, 0 },
diff --git a/src/TransactionFormats.h b/src/TransactionFormats.h
index 6833560696..3f053521f2 100644
--- a/src/TransactionFormats.h
+++ b/src/TransactionFormats.h
@@ -12,6 +12,7 @@ enum TransactionType
 	ttACCOUNT_SET		= 3,
 	ttPASSWORD_FUND		= 4,
 	ttPASSWORD_SET		= 5,
+	ttNICKNAME_SET		= 6,
 	ttCREDIT_SET		= 20,
 	ttTRANSIT_SET		= 21,
 	ttINVOICE			= 10,