diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/util/FS.java b/org.eclipse.jgit/src/org/eclipse/jgit/util/FS.java
index b3d01d3b4..0aa0e3668 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/util/FS.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/util/FS.java
@@ -244,8 +244,9 @@ public abstract class FS {
 			background.set(async);
 		}
 
-		private static final String javaVersionPrefix = System
-				.getProperty("java.vendor") + '|' //$NON-NLS-1$
+		private static final String javaVersionPrefix = SystemReader
+				.getInstance().getHostname() + '|'
+				+ System.getProperty("java.vendor") + '|' //$NON-NLS-1$
 				+ System.getProperty("java.version") + '|'; //$NON-NLS-1$
 
 		private static final Duration FALLBACK_MIN_RACY_INTERVAL = Duration