diff --git a/stim/biomodels/cellset.h b/stim/biomodels/cellset.h
index 3d02028..b09935d 100644
--- a/stim/biomodels/cellset.h
+++ b/stim/biomodels/cellset.h
@@ -3,6 +3,7 @@
 
 #include <stim/math/vec3.h>
 #include <vector>
+#include <list>
 #include <unordered_map>
 #include <fstream>
 
@@ -129,4 +130,4 @@ public:
 };		//end class cellset
 };		//end namespace stim
 
-#endif
\ No newline at end of file
+#endif
--
libgit2 0.21.4