diff --git a/src/Gui/Dialogs/DlgAbout.cpp b/src/Gui/Dialogs/DlgAbout.cpp
index 9186620266..45b253a232 100644
--- a/src/Gui/Dialogs/DlgAbout.cpp
+++ b/src/Gui/Dialogs/DlgAbout.cpp
@@ -668,7 +668,6 @@ void AboutDialog::copyToClipboard()
 
         if (ifcopenshellVerAsStr) {
             str << "IfcOpenShell " << ifcopenshellVerAsStr << ", ";
-            Py_DECREF(ifcopenshellVerAsStr);
         }
         Py_DECREF(ifcopenshellVer);
     }