diff --git a/src/datalists/planetDatalists.ts b/src/datalists/planetDatalists.ts
index aad047c78..501f0328f 100644
--- a/src/datalists/planetDatalists.ts
+++ b/src/datalists/planetDatalists.ts
@@ -716,6 +716,7 @@ const planetDatalists: {
 		'Not Present',
 		'Devoid',
 		'Barren',
+    'Synthetic',
 	]
 }
 
@@ -739,4 +740,4 @@ planetDatalists.planetDescriptors = Array.from(descriptors);
 // Populates `planetDatalists.resources` with the keys from `getResourceData()`.
 planetDatalists.resources = Object.keys(getResourceData());
 
-export default planetDatalists;
\ No newline at end of file
+export default planetDatalists;