Index: trunk/psModules/src/astrom/pmAstrometryWCS.c
===================================================================
--- trunk/psModules/src/astrom/pmAstrometryWCS.c	(revision 21430)
+++ trunk/psModules/src/astrom/pmAstrometryWCS.c	(revision 24048)
@@ -143,6 +143,6 @@
     int Nx = region->x1 - region->x0;
     int Ny = region->y1 - region->y0;
-    psMetadataAddS32 (header, PS_LIST_TAIL, "NAXIS1", PS_META_REPLACE, "Mosaic Dimensions", Nx);
-    psMetadataAddS32 (header, PS_LIST_TAIL, "NAXIS2", PS_META_REPLACE, "Mosaic Dimensions", Ny);
+    psMetadataAddS32 (header, PS_LIST_TAIL, "IMNAXIS1", PS_META_REPLACE, "Mosaic Dimensions", Nx);
+    psMetadataAddS32 (header, PS_LIST_TAIL, "IMNAXIS2", PS_META_REPLACE, "Mosaic Dimensions", Ny);
 
     pmAstromWCStoHeader (header, wcs);