Index: trunk/pstamp/src/pstampdump.c
===================================================================
--- trunk/pstamp/src/pstampdump.c	(revision 21403)
+++ trunk/pstamp/src/pstampdump.c	(revision 21404)
@@ -64,5 +64,5 @@
             exit(PS_EXIT_SYS_ERROR);
         }
-        printf(str);
+        printf("%s", str);
         printf("END\n");
     }