diff --git a/src/flt_spoe.c b/src/flt_spoe.c
index 6ac48fc7d..cc6c55e29 100644
--- a/src/flt_spoe.c
+++ b/src/flt_spoe.c
@@ -3535,7 +3535,7 @@ cfg_parse_spoe_agent(const char *file, int linenum, char **args, int kwm)
 			tmp = args[2];
 			while (*tmp) {
 				if (!isalnum(*tmp) && *tmp != '_' && *tmp != '.') {
-					ha_alert("parsing [%s:%d]: '%s %s' only supports [a-zA-Z_-.] chars.\n",
+					ha_alert("parsing [%s:%d]: '%s %s' only supports [a-zA-Z0-9_.] chars.\n",
 						 file, linenum, args[0], args[1]);
 					err_code |= ERR_ALERT | ERR_FATAL;
 					goto out;
@@ -3569,7 +3569,7 @@ cfg_parse_spoe_agent(const char *file, int linenum, char **args, int kwm)
 			tmp = args[2];
 			while (*tmp) {
 				if (!isalnum(*tmp) && *tmp != '_' && *tmp != '.') {
-					ha_alert("parsing [%s:%d]: '%s %s' only supports [a-zA-Z_-.] chars.\n",
+					ha_alert("parsing [%s:%d]: '%s %s' only supports [a-zA-Z0-9_.] chars.\n",
 						 file, linenum, args[0], args[1]);
 					err_code |= ERR_ALERT | ERR_FATAL;
 					goto out;
@@ -3593,7 +3593,7 @@ cfg_parse_spoe_agent(const char *file, int linenum, char **args, int kwm)
 			tmp = args[2];
 			while (*tmp) {
 				if (!isalnum(*tmp) && *tmp != '_' && *tmp != '.') {
-					ha_alert("parsing [%s:%d]: '%s %s' only supports [a-zA-Z_-.] chars.\n",
+					ha_alert("parsing [%s:%d]: '%s %s' only supports [a-zA-Z0-9_.] chars.\n",
 						 file, linenum, args[0], args[1]);
 					err_code |= ERR_ALERT | ERR_FATAL;
 					goto out;
@@ -3617,7 +3617,7 @@ cfg_parse_spoe_agent(const char *file, int linenum, char **args, int kwm)
 			tmp = args[2];
 			while (*tmp) {
 				if (!isalnum(*tmp) && *tmp != '_' && *tmp != '.') {
-					ha_alert("parsing [%s:%d]: '%s %s' only supports [a-zA-Z_-.] chars.\n",
+					ha_alert("parsing [%s:%d]: '%s %s' only supports [a-zA-Z0-9_.] chars.\n",
 						 file, linenum, args[0], args[1]);
 					err_code |= ERR_ALERT | ERR_FATAL;
 					goto out;