diff --git a/tools/testing/selftests/firmware/fw_filesystem.sh b/tools/testing/selftests/firmware/fw_filesystem.sh
index 731f011def78a14a14d0f09263e66b3dedf1899f..3ac09b401a83c89bb8393d96c19359ca058e73bd 100755
--- a/tools/testing/selftests/firmware/fw_filesystem.sh
+++ b/tools/testing/selftests/firmware/fw_filesystem.sh
@@ -504,6 +504,7 @@ test "$HAS_FW_LOADER_COMPRESS" != "yes" && exit 0
 
 # test with both files present
 $RUN_XZ -k $FW
+$RUN_XZ -k $FW_INTO_BUF
 config_set_name $NAME
 echo
 echo "Testing with both plain and xz files present..."
@@ -529,6 +530,7 @@ done
 
 # test with only xz file present
 mv "$FW" "${FW}-orig"
+mv "$FW_INTO_BUF" "${FW_INTO_BUF}-orig"
 echo
 echo "Testing with only xz file present..."
 for i in $(seq 1 5); do