diff --git a/src/saveload/saveload.h b/src/saveload/saveload.h
--- a/src/saveload/saveload.h
+++ b/src/saveload/saveload.h
@@ -290,6 +290,7 @@ enum SaveLoadVersion : uint16 {
 
 	SLV_GROUP_LIVERIES,                     ///< 205  PR#7108 Livery storage change and group liveries.
 	SLV_SHIPS_STOP_IN_LOCKS,                ///< 206  PR#7150 Ship/lock movement changes.
+	SLV_FIX_CARGO_MONITOR,                  ///< 207  PR#7175 Cargo monitor data packing fix to support 64 cargotypes.
 
 	SL_MAX_VERSION,                         ///< Highest possible saveload version
 };