diff --git a/multinode-demo/leader.sh b/multinode-demo/leader.sh
index 29dbb25c2a..934f8f62a3 100755
--- a/multinode-demo/leader.sh
+++ b/multinode-demo/leader.sh
@@ -3,5 +3,6 @@
 # if RUST_LOG is unset, default to info
 export RUST_LOG=${RUST_LOG:-solana=info}
 
-sudo sysctl -w net.core.rmem_max=26214400
+set -x
+[[ $(uname) = Linux ]] && sudo sysctl -w net.core.rmem_max=26214400
 cargo run --release --bin solana-fullnode -- -l leader.json < genesis.log
diff --git a/multinode-demo/validator.sh b/multinode-demo/validator.sh
index b3a3a24b58..ba40322510 100755
--- a/multinode-demo/validator.sh
+++ b/multinode-demo/validator.sh
@@ -11,7 +11,7 @@ set -x
 
 rsync -v -e ssh "$LEADER"/{mint-demo.json,leader.json,genesis.log} . || exit $?
 
-sudo sysctl -w net.core.rmem_max=26214400
+[[ $(uname) = Linux ]] && sudo sysctl -w net.core.rmem_max=26214400
 
 # if RUST_LOG is unset, default to info
 export RUST_LOG=${RUST_LOG:-solana=info}