diff --git a/framebuffer.cpp b/framebuffer.cpp
index f70d07d..4c45c35 100644
--- a/framebuffer.cpp
+++ b/framebuffer.cpp
@@ -851,8 +851,8 @@ int mapFrameBufferLocked(struct private_module_t* module)
 
     float xdpi = (info.xres * 25.4f) / info.width;
     float ydpi = (info.yres * 25.4f) / info.height;
-    //The reserved[3] field is used to store FPS by the driver.
-    float fps  = info.reserved[3];
+    //The reserved[4] field is used to store FPS by the driver.
+    float fps  = info.reserved[4];
 
     LOGI(   "using (fd=%d)\n"
             "id           = %s\n"