diff --git a/docs/output_plugins.md b/docs/output_plugins.md
index cb3c6e51..c6453b2f 100644
--- a/docs/output_plugins.md
+++ b/docs/output_plugins.md
@@ -17,4 +17,6 @@
 | R | ```main``` | ```waveform_edit``` | Waveform Edit |
 
 ## Old
+| DataType | PluginSet | Short Name | Name |
+| --- | --- | --- | :--- |
 | R | ```old``` | ```wavtool``` | Wavtool |
\ No newline at end of file