diff --git a/tools/sim/bridge.py b/tools/sim/bridge.py
index ae6483fd285a44..70bc5f4e9e5505 100755
--- a/tools/sim/bridge.py
+++ b/tools/sim/bridge.py
@@ -94,7 +94,7 @@ def cam_callback(self, image):
     yuv_cl = cl_array.empty_like(rgb_cl)
     self.krnl(self.queue, (np.int32(self.Wdiv4), np.int32(self.Hdiv4)), None, rgb_cl.data, yuv_cl.data).wait()
     yuv = np.resize(yuv_cl.get(), np.int32(rgb.size / 2))
-    eof = self.frame_id * 0.05
+    eof = int(self.frame_id * 0.05 * 1e9)
 
     # TODO: remove RGB send once the last RGB vipc subscriber is removed
     self.vipc_server.send(VisionStreamType.VISION_STREAM_RGB_ROAD, img.tobytes(), self.frame_id, eof, eof)