diff --git a/modules/juce_core/network/juce_NamedPipe.cpp b/modules/juce_core/network/juce_NamedPipe.cpp
index a6f1cb7ae4..c39ac66d6e 100644
--- a/modules/juce_core/network/juce_NamedPipe.cpp
+++ b/modules/juce_core/network/juce_NamedPipe.cpp
@@ -77,7 +77,7 @@ public:
 
     void runTest() override
     {
-        const String pipeName ("TestPipe");
+        const auto pipeName = "TestPipe" + String ((intptr_t) Thread::getCurrentThreadId());
 
         beginTest ("Pre test cleanup");
         {