diff --git a/build/tools/extract_utils.sh b/build/tools/extract_utils.sh
index 8ef2b3b..06337d6 100644
--- a/build/tools/extract_utils.sh
+++ b/build/tools/extract_utils.sh
@@ -1479,6 +1479,11 @@
             for PARTITION in "system" "odm" "product" "vendor"
             do
                 # If OTA is block based, extract it.
+                if [ -a "$DUMPDIR"/"$PARTITION".new.dat.br ]; then
+                    echo "Converting "$PARTITION".new.dat.br to "$PARTITION".new.dat"
+                    brotli -d "$DUMPDIR"/"$PARTITION".new.dat.br
+                    rm "$DUMPDIR"/"$PARTITION".new.dat.br
+                fi
                 if [ -a "$DUMPDIR"/"$PARTITION".new.dat ]; then
                     echo "Converting "$PARTITION".new.dat to "$PARTITION".img"
                     python "$LINEAGE_ROOT"/vendor/lineage/build/tools/sdat2img.py "$DUMPDIR"/"$PARTITION".transfer.list "$DUMPDIR"/"$PARTITION".new.dat "$DUMPDIR"/"$PARTITION".img 2>&1