Index: trunk/psModules/src/detrend/pmFlatNormalize.c
===================================================================
--- trunk/psModules/src/detrend/pmFlatNormalize.c	(revision 7179)
+++ trunk/psModules/src/detrend/pmFlatNormalize.c	(revision 7278)
@@ -15,4 +15,7 @@
                          )
 {
+    PS_ASSERT_PTR_NON_NULL(chipGains, NULL);
+    PS_ASSERT_PTR_NON_NULL(fluxLevels, NULL);
+
     int numSources = fluxLevels->numRows; // Number of integrations
     int numChips = fluxLevels->numCols; // Number of chips with which each integration is made