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-rw-r--r--tap-protocolinfo.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/tap-protocolinfo.c b/tap-protocolinfo.c
index 562bfc23f2..8c66866b52 100644
--- a/tap-protocolinfo.c
+++ b/tap-protocolinfo.c
@@ -87,11 +87,11 @@ protocolinfo_packet(void *prs, packet_info *pinfo, epan_dissect_t *edt, const vo
static void
-protocolinfo_init(char *optarg)
+protocolinfo_init(const char *optarg)
{
pci_t *rs;
- char *field=NULL;
- char *filter=NULL;
+ const char *field=NULL;
+ const char *filter=NULL;
header_field_info *hfi;
GString *error_string;