diff --git a/modules/juce_core/native/juce_posix_SharedCode.h b/modules/juce_core/native/juce_posix_SharedCode.h
index f3a83b8480..b2284619ca 100644
--- a/modules/juce_core/native/juce_posix_SharedCode.h
+++ b/modules/juce_core/native/juce_posix_SharedCode.h
@@ -887,8 +887,7 @@ void JUCE_API juce_threadEntryPoint (void*);
 extern JavaVM* androidJNIJavaVM;
 #endif
 
-extern "C" void* threadEntryProc (void*);
-extern "C" void* threadEntryProc (void* userData)
+static void* threadEntryProc (void* userData)
 {
     auto* myself = static_cast<Thread*> (userData);