diff --git a/src/common/scripted_effects/_delete_starting_naval.txt b/src/common/scripted_effects/_delete_starting_naval.txt
index 24a1682..1080eb5 100755
--- a/src/common/scripted_effects/_delete_starting_naval.txt
+++ b/src/common/scripted_effects/_delete_starting_naval.txt
@@ -16,7 +16,7 @@ special_project_workaround = {
 		complete_special_project = sp:sp_super_heavy_guns
 	}
 	JAP = {
-		complete_special_project = sp_naval_super_heavy_battleship
+		complete_special_project = sp:sp_naval_super_heavy_battleship
 		complete_special_project = sp:sp_super_heavy_guns
 	}
 	ENG = {