diff --git a/4J.Render/4J_Render.cpp b/4J.Render/4J_Render.cpp
index c16920e82..a22e5ff1b 100644
--- a/4J.Render/4J_Render.cpp
+++ b/4J.Render/4J_Render.cpp
@@ -70,6 +70,9 @@ static void onFramebufferResize(int w, int h)
     ::glViewport(0, 0, w, h);
 }
 
+// V-Sync  
+
+
 // Initialize OpenGL & The SDL window.
 void C4JRender::Initialise()
 {
@@ -121,8 +124,14 @@ void C4JRender::Initialise()
         SDL_Quit();
         return;
     }
-    SDL_GL_SetSwapInterval(0); // V-Sync Off Please.
 
+    // 4JCraft VSync/V-Sync
+    #ifdef ENABLE_VSYNC
+        SDL_GL_SetSwapInterval(1); // V-Sync On Please.        
+    #else
+        SDL_GL_SetSwapInterval(0); // V-Sync Off Please. 
+    #endif  
+    
     int fw, fh; SDL_GetWindowSize(s_window, &fw, &fh); onFramebufferResize(fw, fh);
 
     // We initialize the OpenGL states. Touching those values makes some funny artifacts appear.
diff --git a/meson.build b/meson.build
index 7ec53a62e..e8e00dc3b 100644
--- a/meson.build
+++ b/meson.build
@@ -37,6 +37,12 @@ global_cpp_defs = [
   '-DDEBUG',
 ]
 
+if get_option('enable_vsync')
+    global_cpp_defs += '-DENABLE_VSYNC'
+    message('v-sync enabled')
+endif
+
+
 if host_machine.system() == 'linux'
   global_cpp_defs += [
     '-Dlinux',