diff --git a/src/display/bitmap.cpp b/src/display/bitmap.cpp
index b2ca66c1..62ad9df5 100644
--- a/src/display/bitmap.cpp
+++ b/src/display/bitmap.cpp
@@ -2388,6 +2388,7 @@ int Bitmap::currentFrameI() const
 int Bitmap::addFrame(Bitmap &source, int position)
 {
     guardDisposed();
+    source.guardDisposed();
     
     GUARD_MEGA;