diff --git a/extract-files.sh b/extract-files.sh
index 8154bdf..11624d8 100755
--- a/extract-files.sh
+++ b/extract-files.sh
@@ -23,7 +23,7 @@ source "${HELPER}"
 function blob_fixup {
 	case "$1" in
 	vendor/lib*/libhifills.so)
-		"$PATCHELF" --add-needed "libunwindstack.so" "$2"
+		grep -q libunwindstack.so "$2" || "$PATCHELF" --add-needed "libunwindstack.so" "$2"
 		;;
 	vendor/lib*/hw/camera.exynos7904.so)
 		"$PATCHELF" --replace-needed "libcamera_client.so" "libcamera_metadata_helper.so" "$2"
@@ -34,7 +34,7 @@ function blob_fixup {
 		"$PATCHELF" --remove-needed "libgui.so" "$2"
 		;;
 	vendor/lib*/libsensorlistener.so)
-		"$PATCHELF" --add-needed "libshim_sensorndkbridge.so" "$2"
+		grep -q libshim_sensorndkbridge.so "$2" || "$PATCHELF" --add-needed "libshim_sensorndkbridge.so" "$2"
 		;;
 	vendor/lib*/libwrappergps.so | vendor/lib/hw/audio.primary.exynos7904.so)
 		"$PATCHELF" --replace-needed "libvndsecril-client.so" "libsecril-client.so" "$2"