diff --git a/docs/Trade.pod b/docs/Trade.pod
index 4b904c9b..ea9bb826 100644
--- a/docs/Trade.pod
+++ b/docs/Trade.pod
@@ -225,7 +225,7 @@ Returns a list of prisoners that may be traded. Used with the C<add_trade> metho
         },
         ...
     ],
-    "cargo_space_used_each" : 100,
+    "cargo_space_used_each" : 350,
     "status" : { ... }
  }
 
diff --git a/docs/Transporter.pod b/docs/Transporter.pod
index 2ed1eae0..820bd92b 100644
--- a/docs/Transporter.pod
+++ b/docs/Transporter.pod
@@ -220,7 +220,7 @@ Returns a list of prisoners that may be traded. Used with the C<add_trade> metho
         },
         ...
     ],
-    "cargo_space_used_each" : 100,
+    "cargo_space_used_each" : 350,
     "status" : { ... }
  }
 
diff --git a/lib/Lacuna/Role/TraderRpc.pm b/lib/Lacuna/Role/TraderRpc.pm
index 7222ec4a..2e58d307 100644
--- a/lib/Lacuna/Role/TraderRpc.pm
+++ b/lib/Lacuna/Role/TraderRpc.pm
@@ -113,7 +113,7 @@ sub get_prisoners {
     }
     return {
         prisoners               => \@out,
-        cargo_space_used_each   => 300,
+        cargo_space_used_each   => 350,
         status                  => $self->format_status($empire, $building->body),
     };
 }
diff --git a/var/www/public/changes.txt b/var/www/public/changes.txt
index 59b786ac..5b74920e 100644
--- a/var/www/public/changes.txt
+++ b/var/www/public/changes.txt
@@ -1,5 +1,6 @@
 3.0300
  - Add: Added Mercenaries Guild building.
+ - Fix: Spies require 350 cargo space consistently through the API and docs.
 
 3.0201
  - Add: Changed crater to dent when on space station.