diff --git a/rfbplayer/rfbplayer.cxx b/rfbplayer/rfbplayer.cxx
index 3afe647..518fb2b 100644
--- a/rfbplayer/rfbplayer.cxx
+++ b/rfbplayer/rfbplayer.cxx
@@ -941,6 +941,8 @@
         options.setPF(&supportedPF[options.pixelFormatIndex]->PF);
         options.pixelFormat.bigEndian = options.bigEndianFlag;
       }
+    } else if (options.autoDetectPF) {
+      options.setPF((PixelFormat *)&cp.pf());
     }
   }
   cp.setPF(options.pixelFormat);