diff --git a/stim/visualization/obj.h b/stim/visualization/obj.h
index 033dfd5..0738b12 100644
--- a/stim/visualization/obj.h
+++ b/stim/visualization/obj.h
@@ -8,7 +8,6 @@
 #include <stim/parser/parser.h>
 #include <stim/math/vector.h>
 #include <stim/visualization/obj/obj_material.h>
-#include <stim/parser/filename.h>
 #include <algorithm>
 
 #include <time.h>
--
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