diff --git a/worldedit-core/src/main/java/com/boydti/fawe/Fawe.java b/worldedit-core/src/main/java/com/boydti/fawe/Fawe.java
index a394cf03c..ec7b9fd35 100644
--- a/worldedit-core/src/main/java/com/boydti/fawe/Fawe.java
+++ b/worldedit-core/src/main/java/com/boydti/fawe/Fawe.java
@@ -360,7 +360,7 @@ public class Fawe {
         }
         String arch = System.getenv("PROCESSOR_ARCHITECTURE");
         String wow64Arch = System.getenv("PROCESSOR_ARCHITEW6432");
-        boolean x86OS = !(arch.endsWith("64") || wow64Arch != null && wow64Arch.endsWith("64"));
+        boolean x86OS = arch == null ? true : !(arch.endsWith("64") || wow64Arch != null && wow64Arch.endsWith("64"));
         boolean x86JVM = System.getProperty("sun.arch.data.model").equals("32");
         if (x86OS != x86JVM) {
             debug("====== UPGRADE TO 64-BIT JAVA ======");