diff --git a/src/project.cpp b/src/project.cpp
index 578d20d2..0ad2114e 100644
--- a/src/project.cpp
+++ b/src/project.cpp
@@ -1486,6 +1486,9 @@ Tileset *Project::createNewTileset(const QString &friendlyName, bool secondary,
                     tile.tileId = ((i % 2) == 0) ? 1 : 2;
                 else
                     tile.tileId = ((i % 2) == 1) ? 1 : 2;
+
+                if (tileset->is_secondary)
+                    tile.tileId += Project::getNumTilesPrimary();
             }
             metatile->tiles.append(tile);
         }