diff --git a/python/pydevSrc/com/jetbrains/python/debugger/pydev/RemoteDebugger.java b/python/pydevSrc/com/jetbrains/python/debugger/pydev/RemoteDebugger.java
index cd2c6e2f0b4d..e39f45f1b3a9 100644
--- a/python/pydevSrc/com/jetbrains/python/debugger/pydev/RemoteDebugger.java
+++ b/python/pydevSrc/com/jetbrains/python/debugger/pydev/RemoteDebugger.java
@@ -488,7 +488,7 @@ public class RemoteDebugger implements ProcessDebugger {
     private StringBuilder myTextBuilder = new StringBuilder();
 
     private DebuggerReader(final InputStream stream) throws IOException {
-      super(stream, CharsetToolkit.UTF8_CHARSET); //TODO: correct encoding?
+      super(stream, CharsetToolkit.UTF8_CHARSET, SleepingPolicy.BLOCKING); //TODO: correct encoding?
       start();
     }