--- a/imgtools/sisutils/src/sisutils.cpp	Sat May 15 14:32:45 2010 +0100
+++ b/imgtools/sisutils/src/sisutils.cpp	Sat May 15 18:24:04 2010 +0100
@@ -227,7 +227,7 @@
 			args.push_back(token);
 		}  
 	}
-	args.push_back(NULL);
+	args.push_back((char *)NULL);
     pid_t pid = fork();
     if (pid == 0)
 	{