diff --git a/man/systemd-bootchart.xml b/man/systemd-bootchart.xml
index 9067d6530c..f3c967006a 100644
--- a/man/systemd-bootchart.xml
+++ b/man/systemd-bootchart.xml
@@ -182,6 +182,14 @@
                                 </para></listitem>
                         </varlistentry>
 
+                        <varlistentry>
+                                <term><option>-C</option></term>
+                                <term><option>--cmdline</option></term>
+                                <listitem><para>Display the full command line with arguments of processes,
+                                instead of only the process name.
+                                </para></listitem>
+                        </varlistentry>
+
                         <varlistentry>
                                 <term><option>-o</option></term>
                                 <term><option>--output <replaceable>path</replaceable></option></term>
diff --git a/src/bootchart/bootchart.c b/src/bootchart/bootchart.c
index e7c0b4942b..65f16c517c 100644
--- a/src/bootchart/bootchart.c
+++ b/src/bootchart/bootchart.c
@@ -225,6 +225,8 @@ int main(int argc, char *argv[])
                         fprintf(stderr, " --init,      -i [PATH]   Path to init executable [%s]\n", init_path);
                         fprintf(stderr, " --no-filter, -F          Disable filtering of processes from the graph\n");
                         fprintf(stderr, "                          that are of less importance or short-lived\n");
+                        fprintf(stderr, " --cmdline,   -C          Display the full command line with arguments\n");
+                        fprintf(stderr, "                          of processes, instead of only the process name\n");
                         fprintf(stderr, " --help,      -h          Display this message\n");
                         fprintf(stderr, "See bootchart.conf for more information.\n");
                         exit (EXIT_SUCCESS);