diff --git a/lang/admin/sv-SE.json b/lang/admin/sv-se.json
similarity index 100%
rename from lang/admin/sv-SE.json
rename to lang/admin/sv-se.json
diff --git a/lang/common/sv-SE.json b/lang/common/sv-se.json
similarity index 100%
rename from lang/common/sv-SE.json
rename to lang/common/sv-se.json
diff --git a/lang/email/sv-SE.json b/lang/email/sv-se.json
similarity index 100%
rename from lang/email/sv-SE.json
rename to lang/email/sv-se.json
diff --git a/lang/form/sv-SE.json b/lang/form/sv-se.json
similarity index 100%
rename from lang/form/sv-SE.json
rename to lang/form/sv-se.json
diff --git a/lang/setup/sv-SE.json b/lang/setup/sv-se.json
similarity index 100%
rename from lang/setup/sv-SE.json
rename to lang/setup/sv-se.json