1 files changed, 5 insertions, 0 deletions
diff --git a/sw/source/ui/misc/num.cxx b/sw/source/ui/misc/num.cxx
index 80a6173ddfd7..9b0be5015599 100644
--- a/sw/source/ui/misc/num.cxx
+++ b/sw/source/ui/misc/num.cxx
@@ -262,6 +262,11 @@ void SwNumPositionTabPage::InitControls()
         nMask <<= 1;
 
     }
+    if (MAXLEVEL <= nLvl)
+    {
+        OSL_ENSURE(false, "cannot happen.");
+        return;
+    }
     if(bSameDistBorderNum)
     {
         long nDistBorderNum;