Index: /trunk/psModules/src/imcombine/pmSubtractionAnalysis.c
===================================================================
--- /trunk/psModules/src/imcombine/pmSubtractionAnalysis.c	(revision 25118)
+++ /trunk/psModules/src/imcombine/pmSubtractionAnalysis.c	(revision 25119)
@@ -42,6 +42,5 @@
         psFree(subRegion);
 
-        psMetadataAddPtr(header, PS_LIST_TAIL, PM_SUBTRACTION_ANALYSIS_REGION,
-                         PS_DATA_REGION | PS_META_DUPLICATE_OK,
+        psMetadataAddStr(header, PS_LIST_TAIL, PM_SUBTRACTION_ANALYSIS_REGION, PS_META_DUPLICATE_OK,
                          "Region over which subtraction was performed", string);
         psFree(string);