diff --git a/Documentation/guides/simulator.rst b/Documentation/guides/simulator.rst
index 307d38d80f..de15685d16 100644
--- a/Documentation/guides/simulator.rst
+++ b/Documentation/guides/simulator.rst
@@ -13,7 +13,27 @@ having a piece of embedded hardware.
 This guide assumes you're on Linux. It works on Windows and Mac too— if you know how,
 submit a PR to improve this guide!
 
-.. todo:: Add Mac and Windows instructions
+.. todo:: Windows instructions
+
+Prerequisites For macOS
+-----------------------
+
+We need ``genromfs`` to build simulators(NON GUI).
+
+   .. code-block:: console
+
+      $ git clone https://github.com/chexum/genromfs.git
+      $ cd genromfs
+      $ make 
+      $ make install
+   Now Copy the built `genromfs` `exec` to /opt/local/bin
+
+For GUI Applications we need X11 Libraries, libx11 can also be built using Homebrew or by Installing XQuartz.
+
+   .. code-block:: console
+   
+      $ sudo port install xorg-libX11
+      $ sudo port install sudo port install xorg-server
 
 Compiling
 ---------
diff --git a/arch/sim/src/Makefile b/arch/sim/src/Makefile
index deb7d59dbe..e43dbd1e76 100644
--- a/arch/sim/src/Makefile
+++ b/arch/sim/src/Makefile
@@ -141,6 +141,9 @@ endif
 
 ifeq ($(CONFIG_SIM_X11FB),y)
   HOSTSRCS += sim_x11framebuffer.c
+ifeq ($(CONFIG_HOST_MACOS),y)
+  STDLIBS += -L/opt/X11/lib
+endif
   STDLIBS += -lX11 -lXext
 ifeq ($(CONFIG_SIM_TOUCHSCREEN),y)
   CSRCS += sim_touchscreen.c