diff --git a/km3buu/utils/initials.py b/km3buu/utils/initials.py
index 95cce7cb03c86b9f6225a8b743caf60f3e7349f0..23811dba2a60d6234a79d247cdbf4ed848f0dff0 100755
--- a/km3buu/utils/initials.py
+++ b/km3buu/utils/initials.py
@@ -29,7 +29,7 @@ def main():
         tablepath = Config().proposal_itp_tables
         logging.info(f"Writing PROPOSAL tables to: {tablepath}")
 
-        from km3buu.propagation import _setup_utility, PROPOSAL_LEPTON_DEFINITIONS, PROPOSAL_TARGET_WATER
+        from km3buu.propagation import _setup_utility, PROPOSAL_LEPTON_DEFINITIONS, PROPOSAL_TARGET_WATER, PROPOSAL_TARGET_ROCK
         import proposal as pp
 
         pp.InterpolationSettings.tables_path = '.'