diff --git a/modules/juce_core/files/juce_FileOutputStream.cpp b/modules/juce_core/files/juce_FileOutputStream.cpp
index 4d8e7b4576..8485283295 100644
--- a/modules/juce_core/files/juce_FileOutputStream.cpp
+++ b/modules/juce_core/files/juce_FileOutputStream.cpp
@@ -79,6 +79,9 @@ bool FileOutputStream::write (const void* const src, const size_t numBytes)
 {
     jassert (src != nullptr && ((ssize_t) numBytes) >= 0);
 
+    if (! openedOk())
+        return false;
+
     if (bytesInBuffer + numBytes < bufferSize)
     {
         memcpy (buffer + bytesInBuffer, src, numBytes);