diff --git a/init.lua b/init.lua
index ff6ef11..b80cc4d 100644
--- a/init.lua
+++ b/init.lua
@@ -8,8 +8,8 @@ if minetest.get_modpath("wool") then
 		{name="wool:blue", description=S("Blue carpet")},
 		{name="wool:brown", description=S("Brown carpet")},
 		{name="wool:cyan", description=S("Cyan carpet")},
-		{name="wool:dark_green", description=S("Dark Green carpet")},
-		{name="wool:dark_grey", description=S("Dark Grey carpet")},
+		{name="wool:dark_green", description=S("Dark green carpet")},
+		{name="wool:dark_grey", description=S("Dark grey carpet")},
 		{name="wool:green", description=S("Green carpet")},
 		{name="wool:grey", description=S("Grey carpet")},
 		{name="wool:magenta", description=S("Magenta carpet")},
diff --git a/locale/carpets.eo.tr b/locale/carpets.eo.tr
index f193128..2432b37 100644
--- a/locale/carpets.eo.tr
+++ b/locale/carpets.eo.tr
@@ -5,8 +5,8 @@ Black carpet=Nigra tapiŝo
 Blue carpet=Blua tapiŝo
 Brown carpet=Bruna tapiŝo
 Cyan carpet=Bluverda tapiŝo
-Dark Green carpet=Malhela verda tapiŝo
-Dark Grey carpet=Malhela griza tapiŝo
+Dark green carpet=Malhela verda tapiŝo
+Dark grey carpet=Malhela griza tapiŝo
 Green carpet=Verda tapiŝo
 Grey carpet=Griza tapiŝo
 Magenta carpet=Fuksina tapiŝo
diff --git a/locale/carpets.fr.tr b/locale/carpets.fr.tr
index fc2eb19..c90196e 100644
--- a/locale/carpets.fr.tr
+++ b/locale/carpets.fr.tr
@@ -5,8 +5,8 @@ Black carpet=Tapis noir
 Blue carpet=Tapis bleu
 Brown carpet=Tapis marron
 Cyan carpet=Tapis cyan
-Dark Green carpet=Tapis vert foncé
-Dark Grey carpet=Tapis gris foncé
+Dark green carpet=Tapis vert foncé
+Dark grey carpet=Tapis gris foncé
 Green carpet=Tapis vert
 Grey carpet=Tapis gris
 Magenta carpet=Tapis magenta
diff --git a/locale/template.txt b/locale/template.txt
index 10d97ad..2cb1ed7 100644
--- a/locale/template.txt
+++ b/locale/template.txt
@@ -5,8 +5,8 @@ Black carpet=
 Blue carpet=
 Brown carpet=
 Cyan carpet=
-Dark Green carpet=
-Dark Grey carpet=
+Dark green carpet=
+Dark grey carpet=
 Green carpet=
 Grey carpet=
 Magenta carpet=