diff --git a/gamedir/Data-1.13/TableData/Map/SectorNames.xml b/gamedir/Data-1.13/TableData/Map/SectorNames.xml
index 660c7e2f8..a8a1a0b24 100644
--- a/gamedir/Data-1.13/TableData/Map/SectorNames.xml
+++ b/gamedir/Data-1.13/TableData/Map/SectorNames.xml
@@ -1716,7 +1716,7 @@
     <szDetailedUnexploredName>Swamp</szDetailedUnexploredName>
     <szExploredName>Swamp</szExploredName>
     <szDetailedExploredName>Swamp</szDetailedExploredName>
-    <sWaterType>4</sWaterType>
+    <sWaterType>3</sWaterType>
     <usNaturalDirt>500</usNaturalDirt>
    </SECTOR>
    <SECTOR>