diff --git a/panda/src/putil/pipelineCyclerTrivialImpl.h b/panda/src/putil/pipelineCyclerTrivialImpl.h
index a9f436f6b2..42c91dff0f 100644
--- a/panda/src/putil/pipelineCyclerTrivialImpl.h
+++ b/panda/src/putil/pipelineCyclerTrivialImpl.h
@@ -23,7 +23,8 @@
 
 #ifndef DO_PIPELINING
 
-class CycleData;
+#include "cycleData.h"
+
 class Pipeline;
 
 ////////////////////////////////////////////////////////////////////