diff --git a/src/main/java/org/jenkinsci/plugins/durabletask/BourneShellScript.java b/src/main/java/org/jenkinsci/plugins/durabletask/BourneShellScript.java
index 3c15d3c3..9c0e7075 100644
--- a/src/main/java/org/jenkinsci/plugins/durabletask/BourneShellScript.java
+++ b/src/main/java/org/jenkinsci/plugins/durabletask/BourneShellScript.java
@@ -118,7 +118,7 @@ public String getScript() {
             String defaultShell = jenkins.getInjector().getInstance(Shell.DescriptorImpl.class).getShellOrDefault(ws.getChannel());
             s = "#!"+defaultShell+" -xe\n" + s;
         }
-        shf.write(s, "UTF-8");
+        shf.write(s, "CP1047");
         shf.chmod(0755);
 
         scriptPath = shf.getRemote();
diff --git a/src/main/java/org/jenkinsci/plugins/durabletask/FileMonitoringTask.java b/src/main/java/org/jenkinsci/plugins/durabletask/FileMonitoringTask.java
index cbae4446..d5c77512 100644
--- a/src/main/java/org/jenkinsci/plugins/durabletask/FileMonitoringTask.java
+++ b/src/main/java/org/jenkinsci/plugins/durabletask/FileMonitoringTask.java
@@ -154,7 +154,7 @@ private static class WriteLog extends MasterToSlaveFileCallable<Long> {
                         // TODO is this efficient for large amounts of output? Would it be better to stream data, or return a byte[] from the callable?
                         byte[] buf = new byte[(int) toRead];
                         raf.readFully(buf);
-                        sink.write(buf);
+                        sink.write(new String(buf, "CP1047").getBytes());
                     } finally {
                         raf.close();
                     }
@@ -172,7 +172,7 @@ static class StatusCheck extends MasterToSlaveFileCallable<Integer> {
             public Integer invoke(File f, VirtualChannel channel) throws IOException, InterruptedException {
                 if (f.exists() && f.length() > 0) {
                     try {
-                        String fileString = Files.readFirstLine(f, Charset.defaultCharset());
+                        String fileString = Files.readFirstLine(f, Charset.forName("CP1047")); 
                         if (fileString == null || fileString.isEmpty()) {
                             return null;
                         } else {