diff --git a/os/hal/platforms/Posix/serial_lld.c b/os/hal/platforms/Posix/serial_lld.c
index 28cd19421..cfe6792ca 100644
--- a/os/hal/platforms/Posix/serial_lld.c
+++ b/os/hal/platforms/Posix/serial_lld.c
@@ -64,6 +64,9 @@ static u_long nb = 1;
 static void init(SerialDriver *sdp, uint16_t port) {
   struct sockaddr_in sad;
   struct protoent *prtp;
+  int sockval = 1;
+  socklen_t socklen = sizeof(sockval);
+
 
   if ((prtp = getprotobyname("tcp")) == NULL) {
     printf("%s: Error mapping protocol name to protocol number\n", sdp->com_name);
@@ -76,6 +79,9 @@ static void init(SerialDriver *sdp, uint16_t port) {
     goto abort;
   }
 
+
+  setsockopt(sdp->com_listen, SOL_SOCKET, SO_REUSEADDR, &sockval, socklen);
+
   if (ioctl(sdp->com_listen, FIONBIO, &nb) != 0) {
     printf("%s: Unable to setup non blocking mode on socket\n", sdp->com_name);
     goto abort;
diff --git a/readme.txt b/readme.txt
index 6af7fcc65..626419d25 100644
--- a/readme.txt
+++ b/readme.txt
@@ -89,6 +89,7 @@
 *****************************************************************************
 
 *** 2.5.2 ***
+- FIX: Fixed patch to allow simulator to be restarted quicker (bug #398).
 - FIX: Fixed blkDisconnect macro typo (bug #397).
 - FIX: Fixed STM32 SPI (V2) driver hangs (bug 3608241).
 - FIX: Fixed fixed I2C malfunction after fixing bug 3607518 (bug 3607549)