1 files changed, 6 insertions, 2 deletions
diff --git a/sc/source/ui/namedlg/namedefdlg.cxx b/sc/source/ui/namedlg/namedefdlg.cxx
index 5be3ddc7de25..3304f4d39b08 100644
--- a/sc/source/ui/namedlg/namedefdlg.cxx
+++ b/sc/source/ui/namedlg/namedefdlg.cxx
@@ -125,11 +125,15 @@ bool ScNameDefDlg::IsNameValid()
     ScRangeName* pRangeName = nullptr;
     if(aScope == maGlobalNameStr)
     {
-        pRangeName = maRangeMap.find(STR_GLOBAL_RANGE_NAME)->second;
+        const auto iter = maRangeMap.find(STR_GLOBAL_RANGE_NAME);
+        assert(iter != maRangeMap.end());
+        pRangeName = iter->second;
     }
     else
     {
-        pRangeName = maRangeMap.find(aScope)->second;
+        const auto iter = maRangeMap.find(aScope);
+        assert(iter != maRangeMap.end());
+        pRangeName = iter->second;
     }
 
     ScRangeData::IsNameValidType eType;