1 files changed, 5 insertions, 0 deletions

diff --git a/src/solvers/coord/list.h b/src/solvers/coord/list.h
index 6856c13..71f7920 100644
--- a/src/solvers/coord/list.h
+++ b/src/solvers/coord/list.h
@@ -1,3 +1,6 @@
+#ifndef SOLVERS_COORD_LIST_H
+#define SOLVERS_COORD_LIST_H
+
 coord_t *all_coordinates[] = {
         &coordinate_eo,
         &coordinate_dr,
@@ -15,3 +18,5 @@ multicoord_t *all_multicoordinates[] = {
         &multicoordinate_drfin,
         NULL
 };
+
+#endif /* SOLVERS_COORD_LIST_H */