diff --git a/plugins/proto/RemoteFortressReader.proto b/plugins/proto/RemoteFortressReader.proto
index 4fc13033a..aca007eb3 100644
--- a/plugins/proto/RemoteFortressReader.proto
+++ b/plugins/proto/RemoteFortressReader.proto
@@ -113,13 +113,13 @@ message MapBlock
     repeated MatPair base_materials = 8;
     repeated int32 magma = 9;
     repeated int32 water = 10;
-	repeated bool hidden = 11;
-	repeated bool light = 12;
-	repeated bool subterranean = 13;
-	repeated bool outside = 14;
-	repeated bool aquifer = 15;
-	repeated bool water_stagnant = 16;
-	repeated bool water_salt = 17;
+    repeated bool hidden = 11;
+    repeated bool light = 12;
+    repeated bool subterranean = 13;
+    repeated bool outside = 14;
+    repeated bool aquifer = 15;
+    repeated bool water_stagnant = 16;
+    repeated bool water_salt = 17;
 }
 
 message MatPair {
@@ -212,4 +212,4 @@ message MapInfo
     optional string world_name = 7;
     optional string world_name_english = 8;
     optional string save_name = 9;
-}
\ No newline at end of file
+}