diff --git a/src/input/ThreadInputStream.cxx b/src/input/ThreadInputStream.cxx
index 4311d63ae..dc08f3b6b 100644
--- a/src/input/ThreadInputStream.cxx
+++ b/src/input/ThreadInputStream.cxx
@@ -19,7 +19,6 @@
 
 #include "config.h"
 #include "ThreadInputStream.hxx"
-#include "InputPlugin.hxx"
 #include "thread/Name.hxx"
 #include "util/CircularBuffer.hxx"
 #include "util/HugeAllocator.hxx"