diff --git a/lib/platform/CXWindowsClipboard.cpp b/lib/platform/CXWindowsClipboard.cpp
index c380c9cc..91399013 100644
--- a/lib/platform/CXWindowsClipboard.cpp
+++ b/lib/platform/CXWindowsClipboard.cpp
@@ -1188,7 +1188,7 @@ CXWindowsClipboard::wasOwnedAtTime(::Time time) const
 	// compare time to range
 	Time duration = lost - m_timeOwned;
 	Time when     = time - m_timeOwned;
-	return (/*when >= 0 &&*/ when < duration);
+	return (/*when >= 0 &&*/ when <= duration);
 }
 
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