diff --git a/web3.js/bin/bpf-sdk-install.sh b/web3.js/bin/bpf-sdk-install.sh
index 6b11300a25..b89b682517 100755
--- a/web3.js/bin/bpf-sdk-install.sh
+++ b/web3.js/bin/bpf-sdk-install.sh
@@ -6,7 +6,19 @@ if [[ -z $installDir ]]; then
   installDir="$(cd "$(dirname "$0")"/..; pwd)"
 fi
 
-channel=$("$(dirname "$0")"/testnet-default-channel.js)
+channel=$(
+  cd "$(dirname "$0")";
+  node -p '
+    let p = [
+      "../lib/node_modules/@solana/web3.js/package.json",
+      "../@solana/web3.js/package.json",
+      "../package.json"
+    ].find(require("fs").existsSync);
+    if (!p) throw new Error("Unable to locate solana-web3.js directory");
+    require(p)["testnetDefaultChannel"]
+  '
+)
+
 if [[ -n $2 ]]; then
   channel=$2
 fi
diff --git a/web3.js/bin/localnet.sh b/web3.js/bin/localnet.sh
index f6c08e3599..53b5cf8f19 100755
--- a/web3.js/bin/localnet.sh
+++ b/web3.js/bin/localnet.sh
@@ -1,7 +1,18 @@
 #!/usr/bin/env bash
 set -e
 
-channel=$("$(dirname "$0")"/testnet-default-channel.js)
+channel=$(
+  cd "$(dirname "$0")";
+  node -p '
+    let p = [
+      "../lib/node_modules/@solana/web3.js/package.json",
+      "../@solana/web3.js/package.json",
+      "../package.json"
+    ].find(require("fs").existsSync);
+    if (!p) throw new Error("Unable to locate solana-web3.js directory");
+    require(p)["testnetDefaultChannel"]
+  '
+)
 
 usage() {
   exitcode=0
diff --git a/web3.js/bin/testnet-default-channel.js b/web3.js/bin/testnet-default-channel.js
deleted file mode 100755
index a426aea93c..0000000000
--- a/web3.js/bin/testnet-default-channel.js
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/usr/bin/env node
-
-let p = [
-  __dirname + '/../lib/node_modules/@solana/web3.js/package.json',
-  __dirname + '/../@solana/web3.js/package.json',
-  __dirname + '/../package.json'
-].find(require('fs').existsSync);
-if (!p) throw new Error('Unable to locate solana-web3.js directory');
-
-console.log(require(p)['testnetDefaultChannel']);