diff --git a/dxcam/dxcam.py b/dxcam/dxcam.py
index b83f5f8..b330c0f 100644
--- a/dxcam/dxcam.py
+++ b/dxcam/dxcam.py
@@ -176,6 +176,14 @@ def __capture(
                 frame = self._grab(region)
                 if frame is not None:
                     with self.__lock:
+                        # Reconstruct frame buffer when resolution change
+                        if frame.shape[0] != self.height or frame.shape[1] != self.width:
+                            self.width, self.height = frame.shape[1], frame.shape[0]
+                            region = (0, 0, frame.shape[1], frame.shape[0])
+                            frame_shape = (region[3] - region[1], region[2] - region[0], self.channel_size)
+                            self.__frame_buffer = np.ndarray(
+                                (self.max_buffer_len, *frame_shape), dtype=np.uint8
+                            )
                         self.__frame_buffer[self.__head] = frame
                         if self.__full:
                             self.__tail = (self.__tail + 1) % self.max_buffer_len