diff --git a/src/db/ido/mod.rs b/src/db/ido/mod.rs
index f77a888..1ad4794 100644
--- a/src/db/ido/mod.rs
+++ b/src/db/ido/mod.rs
@@ -305,6 +305,13 @@ pub struct IdoPreInitParameters {
     permanentLiquidityMinFee: Integer,
 }
 
+// Default for `IdoActiveParameters::offeredTokenTotalSupply` so state rows
+// written before the field existed still deserialize. `-1` is the
+// pre-existing-token "unknown supply" sentinel.
+fn default_offered_token_total_supply() -> Integer {
+    Integer::from(-1i64)
+}
+
 #[serde_as]
 #[derive(Serialize, Deserialize, Clone)]
 pub struct IdoActiveParameters {
@@ -313,6 +320,11 @@ pub struct IdoActiveParameters {
     collectorNFTH: Vec<u8>,
     #[serde_as(as = "IntegerAsStr")]
     permanentLiquidityShareNumerator: Integer,
+    // Carried forward from the preinit parameters so it survives the
+    // PreInit→Active transition.
+    #[serde_as(as = "IntegerAsStr")]
+    #[serde(default = "default_offered_token_total_supply")]
+    offeredTokenTotalSupply: Integer,
     #[serde_as(as = "IntegerAsStr")]
     offeredTokenAmount: Integer,
     offering: IdoParametersOffering,
@@ -2309,6 +2321,9 @@ fn ido_add_tx(context: &IdoContext, tx: &Transaction) -> Result<IdoAddResult> {
                             permanentLiquidityShareNumerator: preinit_params
                                 .permanentLiquidityShareNumerator
                                 .clone(),
+                            offeredTokenTotalSupply: preinit_params
+                                .offeredTokenTotalSupply
+                                .clone(),
                             offeredTokenAmount: preinit_params.offeredTokenAmount.clone(),
                             offering: preinit_params.offering.clone(),
                             orbPoolParamsCategory: preinit_params.orbPoolParamsCategory.clone(),