diff --git a/java/java.lsp.server/vscode/src/nbcode.ts b/java/java.lsp.server/vscode/src/nbcode.ts
index 3344324ef8ce..0450aa5bd126 100644
--- a/java/java.lsp.server/vscode/src/nbcode.ts
+++ b/java/java.lsp.server/vscode/src/nbcode.ts
@@ -70,8 +70,8 @@ export function launch(
         ideArgs.push('-J-Dnetbeans.logger.console=true');
     }
     ideArgs.push(`-J-Dnetbeans.extra.dirs=${clusterPath}`)
-    if (env['netbeans.extra.options']) {
-        ideArgs.push(...env['netbeans.extra.options'].split(' '));
+    if (env['netbeans_extra_options']) {
+        ideArgs.push(...env['netbeans_extra_options'].split(' '));
     }
     ideArgs.push(...extraArgs);
     if (env['netbeans_debug'] && extraArgs && extraArgs.find(s => s.includes("--list"))) {
diff --git a/java/java.lsp.server/vscode/src/test/runTest.ts b/java/java.lsp.server/vscode/src/test/runTest.ts
index cb972cd719f1..97e25bd60915 100644
--- a/java/java.lsp.server/vscode/src/test/runTest.ts
+++ b/java/java.lsp.server/vscode/src/test/runTest.ts
@@ -52,7 +52,7 @@ async function main() {
             extensionTestsPath,
             extensionTestsEnv: {
                 'ENABLE_CONSOLE_LOG' : 'true',
-                "netbeans.extra.options" : `-J-Dproject.limitScanRoot=${outRoot} -J-Dnetbeans.logger.console=true`
+                "netbeans_extra_options" : `-J-Dproject.limitScanRoot=${outRoot} -J-Dnetbeans.logger.console=true`
             },
             launchArgs: [
                 '--disable-extensions',