diff --git a/qpms/lattices.h b/qpms/lattices.h
index d8c063d..f0bc038 100644
--- a/qpms/lattices.h
+++ b/qpms/lattices.h
@@ -16,6 +16,7 @@ static inline point2d point2d_fromxy(const double x, const double y) {
 	point2d p;
 	p.x = x;
 	p.y = y;
+	return p;
 }
 
 /* 
@@ -40,6 +41,7 @@ typedef struct {
 
 // returns a copy but scaled by a factor
 points2d_rordered_t *points2d_rordered_scale(const points2d_rordered_t *orig, double factor);
+
 void points2d_rordered_free(points2d_rordered_t *); // use only for result of points2d_rordered_scale
 
 static inline point2d points2d_rordered_get_point(const points2d_rordered_t *ps, int r_order, int i) {
diff --git a/qpms/lattices2d.c b/qpms/lattices2d.c
index d5b9f20..2a4c480 100644
--- a/qpms/lattices2d.c
+++ b/qpms/lattices2d.c
@@ -295,6 +295,7 @@ static void trilatgen_sort_pointlist(triangular_lattice_gen_t *g) {
 triangular_lattice_gen_t * triangular_lattice_gen_init(double a, TriangularLatticeOrientation ori, bool include_origin)
 {
   triangular_lattice_gen_t *g = malloc(sizeof(triangular_lattice_gen_t));
+  g->a = a;
   g->orientation = ori;
   g->includes_origin = include_origin;
   g->ps.nrs = 0;