diff --git a/modules/juce_core/files/juce_TemporaryFile.cpp b/modules/juce_core/files/juce_TemporaryFile.cpp
index 52fbc58839..6614054b62 100644
--- a/modules/juce_core/files/juce_TemporaryFile.cpp
+++ b/modules/juce_core/files/juce_TemporaryFile.cpp
@@ -35,23 +35,6 @@
 namespace juce
 {
 
-// Using Random::getSystemRandom() can be a bit dangerous in multithreaded contexts!
-class LockedRandom
-{
-public:
-    int nextInt()
-    {
-        const ScopedLock lock (mutex);
-        return random.nextInt();
-    }
-
-private:
-    CriticalSection mutex;
-    Random random;
-};
-
-static LockedRandom lockedRandom;
-
 static File createTempFile (const File& parentDirectory, String name,
                             const String& suffix, int optionFlags)
 {
@@ -63,7 +46,7 @@ static File createTempFile (const File& parentDirectory, String name,
 
 TemporaryFile::TemporaryFile (const String& suffix, const int optionFlags)
     : temporaryFile (createTempFile (File::getSpecialLocation (File::tempDirectory),
-                                     "temp_" + String::toHexString (lockedRandom.nextInt()),
+                                     "temp_" + String::toHexString (Random::getSystemRandom().nextInt()),
                                      suffix, optionFlags)),
       targetFile()
 {
@@ -72,7 +55,7 @@ TemporaryFile::TemporaryFile (const String& suffix, const int optionFlags)
 TemporaryFile::TemporaryFile (const File& target, const int optionFlags)
     : temporaryFile (createTempFile (target.getParentDirectory(),
                                      target.getFileNameWithoutExtension()
-                                       + "_temp" + String::toHexString (lockedRandom.nextInt()),
+                                       + "_temp" + String::toHexString (Random::getSystemRandom().nextInt()),
                                      target.getFileExtension(), optionFlags)),
       targetFile (target)
 {