Thorn enchantment in "Pirate speak" is starting with small s: spike

When enchanting a piece of armor with thorns or as its called in pirate speak: spikes it is written with small s, whereas all the other enchantments(atleast as I could see) has a capital starting letter:
Tough
Blokades
Blokades of Flame
Blunderbuss Busting
and so on. I therefore considere it wierd that the "spikes" enchantment issn't "Spikes".
And I have checked for this already being in here but did not find any thing, just saying before you call it a dublicate and tell me to use the seach funtion.
Thank you.