diff --git a/config/fixturenet-optimism/run-op-batcher.sh b/config/fixturenet-optimism/run-op-batcher.sh
index 29a65d5..185cd83 100755
--- a/config/fixturenet-optimism/run-op-batcher.sh
+++ b/config/fixturenet-optimism/run-op-batcher.sh
@@ -11,7 +11,7 @@ L2_RPC="http://op-geth:8545"
 ROLLUP_RPC="http://op-node:8547"
 BATCHER_KEY=$(cat /l2-accounts/accounts.json | jq -r .BatcherKey)
 
-op-batcher \
+exec op-batcher \
   --l2-eth-rpc=$L2_RPC \
   --rollup-rpc=$ROLLUP_RPC \
   --poll-interval=1s \
diff --git a/config/fixturenet-optimism/run-op-geth.sh b/config/fixturenet-optimism/run-op-geth.sh
index d349797..7ec612b 100755
--- a/config/fixturenet-optimism/run-op-geth.sh
+++ b/config/fixturenet-optimism/run-op-geth.sh
@@ -32,7 +32,7 @@ fi
 # Start op-geth
 jwt_file="/l2-config/l2-jwt.txt"
 
-geth \
+exec geth \
   --datadir=$data_dir \
   --http \
   --http.corsdomain="*" \
diff --git a/config/fixturenet-optimism/run-op-node.sh b/config/fixturenet-optimism/run-op-node.sh
index 34d8e09..272c860 100755
--- a/config/fixturenet-optimism/run-op-node.sh
+++ b/config/fixturenet-optimism/run-op-node.sh
@@ -21,7 +21,7 @@ jwt_file=/l2-config/l2-jwt.txt
 L2_AUTH="http://op-geth:8551"
 RPC_KIND=any # this can optionally be set to a preset for common node providers like Infura, Alchemy, etc.
 
-op-node \
+exec op-node \
   --l2=$L2_AUTH \
   --l2.jwt-secret=$jwt_file \
   --sequencer.enabled \
diff --git a/config/fixturenet-optimism/run-op-proposer.sh b/config/fixturenet-optimism/run-op-proposer.sh
index a11349c..15ed1cb 100755
--- a/config/fixturenet-optimism/run-op-proposer.sh
+++ b/config/fixturenet-optimism/run-op-proposer.sh
@@ -13,7 +13,7 @@ ROLLUP_RPC="http://op-node:8547"
 PROPOSER_KEY=$(cat /l2-accounts/accounts.json | jq -r .ProposerKey)
 L2OO_ADDR=$(cat /l1-deployment/$DEPLOYMENT_CONTEXT-deploy.json | jq -r .L2OutputOracleProxy)
 
-op-proposer \
+exec op-proposer \
   --poll-interval=12s \
   --rpc.port=8560 \
   --rollup-rpc=$ROLLUP_RPC \