diff --git a/libraries/plugins/witness/witness.cpp b/libraries/plugins/witness/witness.cpp
index 7b4c0c56..c638da87 100644
--- a/libraries/plugins/witness/witness.cpp
+++ b/libraries/plugins/witness/witness.cpp
@@ -211,7 +211,7 @@ block_production_condition::block_production_condition_enum witness_plugin::bloc
    switch( result )
    {
       case block_production_condition::produced:
-         ilog("Generated block #${n} with timestamp ${t} at time ${c}", (capture));
+         ilog("Generated block #${n} with timestamp ${t} at time ${c}", ("n",capture)("t",capture)("c",capture));
          break;
       case block_production_condition::not_synced:
          ilog("Not producing block because production is disabled until we receive a recent block (see: --enable-stale-production)");
@@ -223,10 +223,10 @@ block_production_condition::block_production_condition_enum witness_plugin::bloc
          ilog("Not producing block because slot has not yet arrived");
          break;
       case block_production_condition::no_private_key:
-         ilog("Not producing block because I don't have the private key for ${scheduled_key}", (capture) );
+         ilog("Not producing block because I don't have the private key for ${scheduled_key}", ("scheduled_key",capture) );
          break;
       case block_production_condition::low_participation:
-         elog("Not producing block because node appears to be on a minority fork with only ${pct}% witness participation", (capture) );
+         elog("Not producing block because node appears to be on a minority fork with only ${pct}% witness participation", ("pct",capture) );
          break;
       case block_production_condition::lag:
          elog("Not producing block because node didn't wake up within 500ms of the slot time.");