diff --git a/owlps-client/owlps-client.c b/owlps-client/owlps-client.c
index 0bfb08c..2ae66f7 100644
--- a/owlps-client/owlps-client.c
+++ b/owlps-client/owlps-client.c
@@ -27,7 +27,7 @@
 #define DEFAULT_FLOOD_DELAY 1000
 
 /* Program arguments (getopt string) */
-#define OPTIONS "F::hi:I:l::n:p:t:V"
+#define OPTIONS "DF::hi:I:l::n:p:t:V"
 
 
 /* Function headers */
@@ -49,6 +49,7 @@ void print_version(void) ;
 
 /* Options */
 struct {
+  owl_bool daemon ;
   char dest_ip[INET_ADDRSTRLEN] ; // Destination IP of the packets
   uint_fast16_t dest_port ;
   char iface[IFNAMSIZ + 1] ; // Source network interface
@@ -62,6 +63,7 @@ struct {
   float y ;
   float z ;
 } options = {
+  owl_false,
   "",
   OWL_DEFAULT_REQUEST_PORT,
   "",
@@ -101,6 +103,13 @@ int main(int argc, char *argv[])
   action.sa_handler = owl_sigterm_handler ;
   sigaction(SIGTERM, &action, NULL) ;
 
+  if (options.daemon)
+    {
+      fprintf(stderr, "Detaching to background...\n") ;
+      if (daemon(0, 0))
+        perror("Cannot daemonize") ;
+    }
+
   create_socket() ;
 
   send_request() ;
@@ -143,6 +152,9 @@ void parse_main_options(int argc, char **argv)
     {
       switch (opt)
         {
+        case 'D' :
+          options.daemon = owl_true ;
+          break ;
         case 'F' :
           /* Facultative getopt options do not handle separated values
            * (like -F <delay>), so we have to test separately.
@@ -320,15 +332,28 @@ void check_configuration()
       options.listening_port = 0 ;
     }
 
-  // We want to flood AND to be located, which is not allowed:
-  if (options.flood_delay >= 0 && options.listening_port > 0)
+  if (options.flood_delay >= 0)
     {
+      // We want to flood AND to be located, which is not allowed:
+      if (options.listening_port > 0)
+        {
 #ifdef DEBUG
-      fprintf(stderr, "Warning! You cannot wait for a server answer when"
-              " you flood. Option -l ignored…\n") ;
+          fprintf(stderr, "Warning! You cannot wait for a server answer"
+                  " when you flood. Option -l ignored…\n") ;
 #endif // DEBUG
-      options.listening_port = 0 ;
+          options.listening_port = 0 ;
+        }
     }
+  else // Flood is unactivated
+    if (options.daemon)
+      {
+#ifdef DEBUG
+          fprintf(stderr, "Warning! It is useless to detach from"
+                  " the foreground if the flood mode is not activated"
+                  " Option -D ignored…\n") ;
+#endif // DEBUG
+          options.daemon = owl_false ;
+      }
 }
 
 
@@ -491,7 +516,7 @@ void print_usage()
          " [-I iface]"
          " [-t delay]"
          " [-n nb_packets]"
-         " [-F [delay]]"
+         " [-F [delay] [-D]]"
          " [-l [port]]\n"
          "Calibration request:\n"
          "\t%s"
@@ -500,6 +525,7 @@ void print_usage()
          " [-I iface]"
          " [-t delay]"
          " [-n nb_packets]"
+         " [-F [delay] [-D]]"
          " direction x y z\n"
          "\n"
          "Options:\n"
@@ -521,6 +547,7 @@ void print_usage()
          " option.\n"
          "\t-F [delay]\t\"Flood mode\": loop undefinitely, sending a"
          " new request every <delay> milliseconds (default: %d ms).\n"
+         "\t-D\t\tDaemon mode. Useful only in flood mode.\n"
          "\t-l [port]\tWait for the computed position and display it."
          " The Optional argument <port> allows to specify the listening"
          " port (default: %d).\n"