diff --git a/ui/widgets/input_fields.cpp b/ui/widgets/input_fields.cpp
index fb6b171..db17e0c 100644
--- a/ui/widgets/input_fields.cpp
+++ b/ui/widgets/input_fields.cpp
@@ -3152,6 +3152,10 @@ bool InputField::commitMarkdownReplacement(
 
 	cursor.setCharFormat(_defaultCharFormat);
 	_inner->setTextCursor(cursor);
+
+	// Fire the tag to the spellchecker.
+	_markdownTagApplies.fire({ from, till, -1, -1, false, tag });
+
 	return true;
 }
 
diff --git a/ui/widgets/input_fields.h b/ui/widgets/input_fields.h
index 4fd9dbc..2873ea7 100644
--- a/ui/widgets/input_fields.h
+++ b/ui/widgets/input_fields.h
@@ -330,6 +330,9 @@ public:
 	auto documentContentsChanges() {
 		return _documentContentsChanges.events();
 	}
+	auto markdownTagApplies() {
+		return _markdownTagApplies.events();
+	}
 
 	~InputField();
 
@@ -535,6 +538,7 @@ private:
 	bool _instantReplacesEnabled = true;
 
 	rpl::event_stream<DocumentChangeInfo> _documentContentsChanges;
+	rpl::event_stream<MarkdownTag> _markdownTagApplies;
 
 };