1 files changed, 3 insertions, 0 deletions
diff --git a/luaotfload.dtx b/luaotfload.dtx
index b9cf7eb..7e6283b 100644
--- a/luaotfload.dtx
+++ b/luaotfload.dtx
@@ -672,6 +672,9 @@ local function def_font(...)
                     fontdata.MathConstants[k] = v / units * size
                 end
             end
+            -- for \overwithdelims
+            fontdata.MathConstants["FractionDelimiterSize"]        = 1.01 * size
+            fontdata.MathConstants["FractionDelimiterDisplayStyleSize"] = 2.39 * size
         end
 
     end