diff --git a/org.lflang.lfc/build.gradle b/org.lflang.lfc/build.gradle
index da105af074..ee64d161cb 100644
--- a/org.lflang.lfc/build.gradle
+++ b/org.lflang.lfc/build.gradle
@@ -52,8 +52,12 @@ task buildLfc(dependsOn: ['setupTypescriptRuntime']) {
 }
 
 task setupTypescriptRuntime(type: Exec) {
+    String npm = 'npm';
+    if (Os.isFamily(Os.FAMILY_WINDOWS)) {
+        npm = 'npm.cmd'
+    }
     workingDir '../org.lflang/src/lib/ts/reactor-ts'
-    commandLine 'npm', 'install'
+    commandLine npm, 'install'
     outputs.dir('../org.lflang/src/lib/ts/reactor-ts/lib')
     inputs.dir('../org.lflang/src/lib/ts/reactor-ts')
 }
diff --git a/org.lflang/src/lib/ts/reactor-ts b/org.lflang/src/lib/ts/reactor-ts
index cbd9961884..da33b3a8e3 160000
--- a/org.lflang/src/lib/ts/reactor-ts
+++ b/org.lflang/src/lib/ts/reactor-ts
@@ -1 +1 @@
-Subproject commit cbd9961884d075be18cbcf55062cf185277bea63
+Subproject commit da33b3a8e3e442e12373bb9ca85700f346b8675d