diff --git a/app/src/processing/app/tools/InstallCommander.java b/app/src/processing/app/tools/InstallCommander.java
index cd136c3621..aa45d3b1ea 100644
--- a/app/src/processing/app/tools/InstallCommander.java
+++ b/app/src/processing/app/tools/InstallCommander.java
@@ -100,6 +100,7 @@ public void run() {
 
       StringList jarList = new StringList();
       addJarList(jarList, new File(javaRoot));
+      addJarList(jarList, new File(javaRoot).getParentFile());
       addJarList(jarList, new File(javaRoot, "core/library"));
       addJarList(jarList, new File(javaRoot, "modes/java/mode"));
       String classPath = jarList.join(":").replaceAll(javaRoot + "\\/?", "");