diff --git a/src/core/Cutter.cpp b/src/core/Cutter.cpp
index 83a3afc0..3b479938 100644
--- a/src/core/Cutter.cpp
+++ b/src/core/Cutter.cpp
@@ -3483,7 +3483,10 @@ void CutterCore::addFlag(RVA offset, QString name, RVA size)
 QString CutterCore::listFlagsAsStringAt(RVA addr)
 {
     CORE_LOCK();
-    return r_flag_get_liststr (core->flags, addr);
+    char *flagList = r_flag_get_liststr (core->flags, addr);
+    QString result(flagList);
+    r_mem_free(flagList);
+    return result;
 }
 
 QString CutterCore::nearestFlag(RVA offset, RVA *flagOffsetOut)