diff --git a/plugins/libimhex/include/hex/lang/pattern_data.hpp b/plugins/libimhex/include/hex/lang/pattern_data.hpp
index cc4b9f06e..e393fb8cb 100644
--- a/plugins/libimhex/include/hex/lang/pattern_data.hpp
+++ b/plugins/libimhex/include/hex/lang/pattern_data.hpp
@@ -642,6 +642,8 @@ namespace hex::lang {
         }
 
         void setMembers(const std::vector<PatternData*> & members) {
+            this->m_members.clear();
+
             for (auto &member : members) {
                 if (member == nullptr) continue;