diff --git a/erlang/rebar.config b/erlang/rebar.config
index 63a8045..b303ca7 100644
--- a/erlang/rebar.config
+++ b/erlang/rebar.config
@@ -69,11 +69,7 @@
     %% only called from tests
   , {sim_core, run, 2}
     %% actual unused exports
-  , {pdp10_elf36, read_Ehdr, 3}
   , {pdp10_elf36, read_PhTab, 4}
-  , {pdp10_elf36, read_RelaTab, 4}
-  , {pdp10_elf36, read_ShTab, 4}
-  , {pdp10_elf36, read_SymTab, 4}
   , {pdp10_opcodes, cpu_device_from_name, 2}
   , {pdp10_opcodes, models_from_name, 1}
   , {sim_core, calculate_ea, 5}