oops 99 is the last item

[rrdtool.git] / src / rrd_graph.c

diff --git a/src/rrd_graph.c b/src/rrd_graph.c
index 4abacc7..ad6ef4a 100644 (file)
--- a/src/rrd_graph.c
+++ b/src/rrd_graph.c
@@ -3519,7 +3519,7 @@ rrd_graph_options(int argc, char *argv[],image_desc_t *im)
 
         case 'W':
             strncpy(im->watermark,optarg,100);
-            im->watermark[100]='\0';
+            im->watermark[99]='\0';
             break;
 
        case '?':