diff --git a/src/normaliz.cc b/src/normaliz.cc
index a2ef45d..9768988 100644
--- a/src/normaliz.cc
+++ b/src/normaliz.cc
@@ -27,6 +27,7 @@
 
 #include "libnormaliz/cone.h"
 #include "libnormaliz/map_operations.h"
+#include "libnormaliz/dynamic_bitset.h"
 
 #include <vector>