diff --git a/Makefile b/Makefile
index e14be4ad2..0379adf57 100644
--- a/Makefile
+++ b/Makefile
@@ -627,6 +627,7 @@ endif
 $(eval $(call add_include_file,libs/sha1/sha1.h))
 $(eval $(call add_include_file,libs/json11/json11.hpp))
 $(eval $(call add_include_file,passes/fsm/fsmdata.h))
+$(eval $(call add_include_file,passes/techmap/libparse.h))
 $(eval $(call add_include_file,frontends/ast/ast.h))
 $(eval $(call add_include_file,frontends/ast/ast_binding.h))
 $(eval $(call add_include_file,frontends/blif/blifparse.h))
diff --git a/passes/techmap/libparse.h b/passes/techmap/libparse.h
index 949adbdcf..8a2ab22e0 100644
--- a/passes/techmap/libparse.h
+++ b/passes/techmap/libparse.h
@@ -26,6 +26,11 @@
 #include <vector>
 #include <set>
 
+/**
+ * This file is likely to change in the near future.
+ * Rely on it in your plugins at your own peril
+ */
+
 namespace Yosys
 {
 	struct LibertyAst