1 files changed, 1 insertions, 1 deletions
diff --git a/src/PJ_wag3.cpp b/src/PJ_wag3.cpp
index f0443688..bb1b4d49 100644
--- a/src/PJ_wag3.cpp
+++ b/src/PJ_wag3.cpp
@@ -35,7 +35,7 @@ static LP s_inverse (XY xy, PJ *P) {           /* Spheroidal, inverse */
 PJ *PROJECTION(wag3) {
 	double ts;
     struct pj_opaque *Q = static_cast<struct pj_opaque*>(pj_calloc (1, sizeof (struct pj_opaque)));
-    if (0==Q)
+    if (nullptr==Q)
         return pj_default_destructor(P, ENOMEM);
 
     P->opaque = Q;