diff --git a/src/main.c b/src/main.c
index 0471cab..ca2c718 100644
--- a/src/main.c
+++ b/src/main.c
@@ -191,7 +191,7 @@ static void help() {
   printf("\t-4k\t\t\tUse 3840x2160 resolution\n");
   printf("\t-width <width>\t\tHorizontal resolution (default 1280)\n");
   printf("\t-height <height>\tVertical resolution (default 720)\n");
-  #if defined(HAVE_PI)
+  #if defined(HAVE_PI) | defined(HAVE_MMAL)
   printf("\t-rotate <height>\tRotate display: 0/90/180/270 (default 0)\n");
   #endif
   printf("\t-fps <fps>\t\tSpecify the fps to use (default -1)\n");
diff --git a/src/video/mmal.c b/src/video/mmal.c
index 890368c..232b053 100644
--- a/src/video/mmal.c
+++ b/src/video/mmal.c
@@ -158,6 +158,18 @@ static int decoder_renderer_setup(int videoFormat, int width, int height, int re
   param.layer = 128;
   param.display_num = 0;
   param.fullscreen = true;
+  int displayRotation = drFlags & DISPLAY_ROTATE_MASK;
+  switch (displayRotation) {
+  case DISPLAY_ROTATE_90:
+    param.transform = MMAL_DISPLAY_ROT90;
+    break;
+  case DISPLAY_ROTATE_180:
+    param.transform = MMAL_DISPLAY_ROT180;
+    break;
+  case DISPLAY_ROTATE_270:
+    param.transform = MMAL_DISPLAY_ROT270;
+    break;
+  }
 
   if (mmal_port_parameter_set(renderer->input[0], &param.hdr) != MMAL_SUCCESS) {
     fprintf(stderr, "Can't set parameters\n");