diff --git a/benchmarks/backwards_ecal/config.yml b/benchmarks/backwards_ecal/config.yml
index 9d36dc57..55d8d871 100644
--- a/benchmarks/backwards_ecal/config.yml
+++ b/benchmarks/backwards_ecal/config.yml
@@ -5,8 +5,7 @@ sim:backwards_ecal:
     - mkdir -p $LOCAL_DATA_PATH/input
     - ln -s $LOCAL_DATA_PATH/input input
     - |
-      snakemake --cores 5 \
-        sim_output/backwards_ecal/epic_craterlake
+      snakemake --cores 5 sim_output/backwards_ecal/epic_craterlake/flag
 
 bench:backwards_ecal_emcal_backwards:
   extends: .det_benchmark
@@ -17,7 +16,7 @@ bench:backwards_ecal_emcal_backwards:
     - ln -s $LOCAL_DATA_PATH/input input
     - export PYTHONUSERBASE=$LOCAL_DATA_PATH/deps
     - pip install -r benchmarks/backwards_ecal/requirements.txt
-    - snakemake --cores 8 backwards_ecal_ecal_backwards
+    - snakemake --cores 1 backwards_ecal_ecal_backwards
 
 collect_results:backwards_ecal:
   extends: .det_benchmark