diff --git a/doc/tshark.pod b/doc/tshark.pod
index 6b31efe86a..1edfb48ecd 100644
--- a/doc/tshark.pod
+++ b/doc/tshark.pod
@@ -291,9 +291,9 @@ from such an account, it will not list any interfaces.
 Add a field to the list of fields to display if B<-T fields> is
 selected.  This option can be used multiple times on the command line.
 At least one field must be provided if the B<-T fields> option is
-selected. Column names may be used prefixed with "col."
+selected. Column names may be used prefixed with "_ws.col."
 
-Example: B<-e frame.number -e ip.addr -e udp -e col.info>
+Example: B<-e frame.number -e ip.addr -e udp -e _ws.col.info>
 
 Giving a protocol rather than a single field will print multiple items
 of data about the protocol as a single field.  Fields are separated by
diff --git a/docbook/wsug_src/WSUG_app_tools.xml b/docbook/wsug_src/WSUG_app_tools.xml
index 34041db746..5de2cba797 100644
--- a/docbook/wsug_src/WSUG_app_tools.xml
+++ b/docbook/wsug_src/WSUG_app_tools.xml
@@ -87,7 +87,7 @@ Output:
   -x                       add output of hex and ASCII dump (Packet Bytes)
   -T pdml|ps|psml|text|fields
                            format of text output (def: text)
-  -e &lt;field&gt;               field to print if -Tfields selected (e.g. tcp.port, col.Info);
+  -e &lt;field&gt;               field to print if -Tfields selected (e.g. tcp.port, _ws.col.Info);
                            this option can be repeated to print multiple fields
   -E&lt;fieldsoption&gt;=&lt;value&gt; set options for output when -Tfields selected:
      header=y|n            switch headers on and off
diff --git a/epan/print.c b/epan/print.c
index a60a9c7672..6aa353f9ea 100644
--- a/epan/print.c
+++ b/epan/print.c
@@ -1382,7 +1382,7 @@ void output_fields_free(output_fields_t* fields)
     g_free(fields);
 }
 
-#define COLUMN_FIELD_FILTER  "col."
+#define COLUMN_FIELD_FILTER  "_ws.col."
 
 void output_fields_add(output_fields_t *fields, const gchar *field)
 {
diff --git a/tshark.c b/tshark.c
index 1d81362e59..ba73d1a70e 100644
--- a/tshark.c
+++ b/tshark.c
@@ -320,7 +320,7 @@ print_usage(gboolean print_ver)
   fprintf(output, "  -x                       add output of hex and ASCII dump (Packet Bytes)\n");
   fprintf(output, "  -T pdml|ps|psml|text|fields\n");
   fprintf(output, "                           format of text output (def: text)\n");
-  fprintf(output, "  -e <field>               field to print if -Tfields selected (e.g. tcp.port, col.Info);\n");
+  fprintf(output, "  -e <field>               field to print if -Tfields selected (e.g. tcp.port, _ws.col.Info);\n");
   fprintf(output, "                           this option can be repeated to print multiple fields\n");
   fprintf(output, "  -E<fieldsoption>=<value> set options for output when -Tfields selected:\n");
   fprintf(output, "     header=y|n            switch headers on and off\n");