1 files changed, 9 insertions, 0 deletions
diff --git a/starmath/source/parse.cxx b/starmath/source/parse.cxx
index 4ac26866e07c..a2c4e3382517 100644
--- a/starmath/source/parse.cxx
+++ b/starmath/source/parse.cxx
@@ -1266,6 +1266,8 @@ std::unique_ptr<SmNode> SmParser::DoRelation()
     if (aDepthGuard.TooDeep())
         throw std::range_error("parser depth limit");
 
+    int nDepthLimit = m_nParseDepth;
+
     auto xFirst = DoSum();
     while (TokenInGroup(TG::Relation))
     {
@@ -1274,7 +1276,14 @@ std::unique_ptr<SmNode> SmParser::DoRelation()
         auto xThird = DoSum();
         xSNode->SetSubNodes(std::move(xFirst), std::move(xSecond), std::move(xThird));
         xFirst = std::move(xSNode);
+
+        ++m_nParseDepth;
+        if (aDepthGuard.TooDeep())
+            throw std::range_error("parser depth limit");
     }
+
+    m_nParseDepth = nDepthLimit;
+
     return xFirst;
 }