Index: trunk/psLib/src/fits/psFitsFloat.c
===================================================================
--- trunk/psLib/src/fits/psFitsFloat.c	(revision 16549)
+++ trunk/psLib/src/fits/psFitsFloat.c	(revision 17447)
@@ -153,5 +153,5 @@
             return NULL;
         }
-        assert(out->type.type == PS_TYPE_F32);
+        psAssert(out->type.type == PS_TYPE_F32, "impossible");
         for (int y = 0; y < numRows; y++) {
             for (int x = 0; x < numCols; x++) {