1 files changed, 1 insertions, 1 deletions
diff --git a/libqpdf/QPDF.cc b/libqpdf/QPDF.cc
index dcfd5f46..09221394 100644
--- a/libqpdf/QPDF.cc
+++ b/libqpdf/QPDF.cc
@@ -60,7 +60,7 @@ namespace
     class InvalidInputSource: public InputSource
     {
       public:
-        virtual ~InvalidInputSource() = default;
+        ~InvalidInputSource() override = default;
         qpdf_offset_t
         findAndSkipNextEOL() override
         {