diff --git a/src/App/PropertyLinks.cpp b/src/App/PropertyLinks.cpp
index 994a75188..4b6b9e061 100644
--- a/src/App/PropertyLinks.cpp
+++ b/src/App/PropertyLinks.cpp
@@ -588,6 +588,7 @@ void PropertyLinkSubList::setValue(DocumentObject* lValue, const std::vector<str
     aboutToSetValue();
     std::size_t size = SubList.size();
     this->_lValueList.clear();
+    this->_lSubList.clear();
     if (size == 0) {
         if (lValue) {
             this->_lValueList.push_back(lValue);