diff --git a/panda/src/putil/pipeline.h b/panda/src/putil/pipeline.h
index b7f21cd06d..21fa4e96b6 100644
--- a/panda/src/putil/pipeline.h
+++ b/panda/src/putil/pipeline.h
@@ -24,7 +24,7 @@
 #include "pset.h"
 #include "reMutex.h"
 
-class PipelineCyclerTrueImpl;
+struct PipelineCyclerTrueImpl;
 
 ////////////////////////////////////////////////////////////////////
 //       Class : Pipeline