diff --git a/nbdkit.spec b/nbdkit.spec
index 888ae62..cb3b1db 100644
--- a/nbdkit.spec
+++ b/nbdkit.spec
@@ -112,6 +112,10 @@ trivial dependencies.
 
   A null (bitbucket) plugin.
 
+* nbdkit-split-plugin
+
+  Concatenate one or more files into a single virtual disk.
+
 * nbdkit-streaming-plugin
 
   A streaming file serving plugin.