Index: trunk/psModules/src/concepts/pmConceptsStandard.c
===================================================================
--- trunk/psModules/src/concepts/pmConceptsStandard.c	(revision 24419)
+++ trunk/psModules/src/concepts/pmConceptsStandard.c	(revision 25131)
@@ -450,9 +450,6 @@
         small = 3600.0 * coords;
         small = (float)((int)(small * 1000.0)) / 1000.0;
-        if (negative) {
-            big *= -1;
-        }
         psString coordString = NULL;        // String with the coordinates in sexagesimal format
-        psStringAppend(&coordString, "%d:%02d:%06.3f", big, medium, small);
+        psStringAppend(&coordString, "%c%02d:%02d:%06.3f", negative ? '-' : '+', big, medium, small);
         coordItem = psMetadataItemAllocStr(concept->name, concept->comment, coordString);
         psFree(coordString);