1 files changed, 5 insertions, 0 deletions

diff --git a/src/solvers/coord/gendata.h b/src/solvers/coord/gendata.h
index 81ab842..a48263c 100644
--- a/src/solvers/coord/gendata.h
+++ b/src/solvers/coord/gendata.h
@@ -1,3 +1,6 @@
+#ifndef SOLVERS_COORD_GENDATA_H
+#define SOLVERS_COORD_GENDATA_H
+
 STATIC size_t gendata_coord(const coord_t [NON_NULL], unsigned char *);
 STATIC size_t gendata_multicoord(
     const multicoord_t [NON_NULL], unsigned char *);
@@ -362,3 +365,5 @@ set_coord_pval(
         table[COORD_INDEX(i)] = (table[COORD_INDEX(i)] & (~COORD_MASK(i)))
             | (val << COORD_SHIFT(i));
 }
+
+#endif /* SOLVERS_COORD_GENDATA_H */