Index: trunk/psLib/src/math/psHistogram.c
===================================================================
--- trunk/psLib/src/math/psHistogram.c	(revision 34701)
+++ trunk/psLib/src/math/psHistogram.c	(revision 34702)
@@ -58,5 +58,5 @@
     psTrace("psLib.math", 3, "---- %s() begin  ----\n", __func__);
     psTrace("psLib.math", 5, "(lower, upper, n) is (%f, %f, %d)\n", lower, upper, n);
-    psAssert(n > 0, "Number of bins must be positive");
+    psAssert(n > 0, "Number of bins must be positive not %d", n);
     psAssert(upper >= lower, "Bounds must be sensical");