diff --git a/recipes-core/images/image-rauc-slot-rescue.bb b/recipes-core/images/image-rauc-slot-rescue.bb
index b811377..dfd7e52 100644
--- a/recipes-core/images/image-rauc-slot-rescue.bb
+++ b/recipes-core/images/image-rauc-slot-rescue.bb
@@ -49,3 +49,15 @@ IMAGE_FSTYPES_sysmocom-idu = "cpio.xz"
 IMAGE_FSTYPES_sysmobts-v2 = "ubi"
 
 BAD_RECOMMENDATIONS += "busybox-syslog"
+
+
+shrink_rescue() {
+    # In case of the sysmoBTS.. remove files
+    rm -rf ${IMAGE_ROOTFS}/lib/firmware/sysmobts*
+
+    # Who cares about udev?
+    rm -rf ${IMAGE_ROOTFS}/lib/udev/hwdb.d/*
+    rm -rf ${IMAGE_ROOTFS}/etc/udev/hwdb.bin
+}
+
+IMAGE_PREPROCESS_COMMAND += "shrink_rescue; "