diff --git a/src/algorithms/libs/rtklib/rtklib_preceph.cc b/src/algorithms/libs/rtklib/rtklib_preceph.cc
index c6dec6056..2e4d73911 100644
--- a/src/algorithms/libs/rtklib/rtklib_preceph.cc
+++ b/src/algorithms/libs/rtklib/rtklib_preceph.cc
@@ -355,8 +355,7 @@ void readsp3(const char *file, nav_t *nav, int opt)
  *-----------------------------------------------------------------------------*/
 int readsap(const char *file, gtime_t time, nav_t *nav)
 {
-    pcv_t aux = { 0, {}, {}, {0,0}, {0,0}, {{},{}}, {{},{}} };
-    pcvs_t pcvs = {0, 0, &aux };
+    pcvs_t pcvs = {0, 0, (pcv_t*){ 0 } };
     pcv_t pcv0 = { 0, {}, {}, {0,0}, {0,0}, {{},{}}, {{},{}} }, *pcv;
     int i;