X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Frrd_graph.h;h=a7467369987acfcc3be0c0694b701ef36acaa908;hb=e8615c408aaed016d27e4d0a3c21513409b4d6cf;hp=cf99c8e4e946fed0bd768eefbae447ca1f046a0b;hpb=e6d6ed89bc84009c5ea94d5e2c770833afb80f21;p=rrdtool.git

diff --git a/src/rrd_graph.h b/src/rrd_graph.h
index cf99c8e..a746736 100644
--- a/src/rrd_graph.h
+++ b/src/rrd_graph.h
@@ -6,7 +6,7 @@
 #include "rrd_gfx.h"
 
 #define MAX_VNAME_LEN 29
-#define DEF_NAM_FMT "%29[_A-Za-z0-9]"
+#define DEF_NAM_FMT "%29[-_A-Za-z0-9]"
 
 #define ALTYGRID	0x01	/* use alternative y grid algorithm */
 #define ALTAUTOSCALE	0x02	/* use alternative algorithm to find lower and upper bounds */