diff --git a/source/cell/rich_text.cpp b/source/cell/rich_text.cpp
index 3543b284..59d64af9 100644
--- a/source/cell/rich_text.cpp
+++ b/source/cell/rich_text.cpp
@@ -34,7 +34,7 @@ rich_text::rich_text(const std::string &plain_text)
 }
 
 rich_text::rich_text(const std::string &plain_text, const class font &text_font)
-    : rich_text(rich_text_run{plain_text, text_font})
+    : rich_text(std::make_pair(plain_text, optional<font>(text_font)))
 {
 }