diff --git a/indra/llui/lltexteditor.cpp b/indra/llui/lltexteditor.cpp
index 29095cf90..a796cdc99 100644
--- a/indra/llui/lltexteditor.cpp
+++ b/indra/llui/lltexteditor.cpp
@@ -4228,7 +4228,7 @@ void LLTextEditor::appendTextImpl(const std::string &new_text, const LLStyleSP s
 			if (always_underline) link_style->mUnderline = true;
 			appendAndHighlightText(link, part, link_style, !always_underline/*match.underlineOnHoverOnly()*/);
 		};
-		const auto&& cb = force_replace_links ? boost::bind(&LLTextEditor::replaceUrl, this, _1, _2, _3) : LLUrlLabelCallback();
+		const auto&& cb = force_replace_links ? static_cast<LLUrlLabelCallback>(boost::bind(&LLTextEditor::replaceUrl, this, _1, _2, _3)) : LLUrlRegistryNullCallback;
 		while (!text.empty() && LLUrlRegistry::instance().findUrl(text, match, cb))
 		{
 			start = match.getStart();