Index: trunk/psastro/src/psastroFixChips.c
===================================================================
--- trunk/psastro/src/psastroFixChips.c	(revision 41536)
+++ trunk/psastro/src/psastroFixChips.c	(revision 41895)
@@ -170,5 +170,5 @@
     if (DEBUG) fclose (f);
 
-    psPlaneTransform *map = psPlaneTransformAlloc (1, 1);
+    psPlaneTransform *map = psPlaneTransformAlloc (1, 1, PS_POLYNOMIAL_ORD);
 
     psVector *mask = psVectorAlloc (nPts, PS_TYPE_VECTOR_MASK);
@@ -289,5 +289,5 @@
         // apply the exiting fromTPA transformation to make the new toFPA consistent with the toTPA layter
         // XXX this only works if toTPA is at most a linear transformation
-        psPlaneTransform *toFPA = psPlaneTransformAlloc(refChip->toFPA->x->nX, refChip->toFPA->x->nY);
+        psPlaneTransform *toFPA = psPlaneTransformAlloc(refChip->toFPA->x->nX, refChip->toFPA->x->nY, PS_POLYNOMIAL_ORD);
         for (int i = 0; i <= refChip->toFPA->x->nX; i++) {
             for (int j = 0; j <= refChip->toFPA->x->nY; j++) {