Index: trunk/psModules/src/imcombine/pmSubtractionKernels.c
===================================================================
--- trunk/psModules/src/imcombine/pmSubtractionKernels.c	(revision 15429)
+++ trunk/psModules/src/imcombine/pmSubtractionKernels.c	(revision 15432)
@@ -488,5 +488,5 @@
     PS_ASSERT_INT_NONNEGATIVE(spatialOrder, NULL);
     PS_ASSERT_INT_NONNEGATIVE(inner, NULL);
-    PS_ASSERT_INT_LESS_THAN(inner, size, NULL);
+    PS_ASSERT_INT_LESS_THAN_OR_EQUAL(inner, size, NULL);
     PS_ASSERT_INT_NONNEGATIVE(ringsOrder, NULL);