diff --git a/Linear_cell_complex/examples/Linear_cell_complex/basic_viewer.h b/Linear_cell_complex/examples/Linear_cell_complex/basic_viewer.h
index 41541c15f94..b992f7271b0 100644
--- a/Linear_cell_complex/examples/Linear_cell_complex/basic_viewer.h
+++ b/Linear_cell_complex/examples/Linear_cell_complex/basic_viewer.h
@@ -39,6 +39,7 @@
 
 #include <vector>
 #include <cstdlib>
+#include <queue>
 
 #define NB_VBO_BUFFERS 8
 #define NB_VAO_BUFFERS 4