diff --git a/src/clans.rs b/src/clans.rs
index 76ed35b..0aac8d1 100644
--- a/src/clans.rs
+++ b/src/clans.rs
@@ -11,6 +11,7 @@ use std::str::FromStr;
 /// The clans of the playable races in the game.
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[cfg_attr(feature = "with_serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "with_serde", serde(rename_all = "snake_case"))]
 pub enum Clan {
   // Au Ra
   Raen,
diff --git a/src/data_centers.rs b/src/data_centers.rs
index 77e3fd9..c426e4a 100644
--- a/src/data_centers.rs
+++ b/src/data_centers.rs
@@ -7,6 +7,7 @@ use std::str::FromStr;
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[cfg_attr(feature = "with_serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "with_serde", serde(rename_all = "snake_case"))]
 pub enum DataCenter {
   Aether,
   Chaos,
diff --git a/src/guardians.rs b/src/guardians.rs
index b5e452a..812bce2 100644
--- a/src/guardians.rs
+++ b/src/guardians.rs
@@ -8,6 +8,7 @@ use std::str::FromStr;
 /// The guardian deities in the game.
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[cfg_attr(feature = "with_serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "with_serde", serde(rename_all = "snake_case"))]
 pub enum Guardian {
   Althyk,
   Azeyma,
diff --git a/src/jobs/classification.rs b/src/jobs/classification.rs
index 5945c78..d0c0eab 100644
--- a/src/jobs/classification.rs
+++ b/src/jobs/classification.rs
@@ -13,6 +13,7 @@ use std::str::FromStr;
 /// [`NonCombatJob`]: ::jobs::NonCombatJob
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[cfg_attr(feature = "with_serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "with_serde", serde(rename_all = "snake_case"))]
 pub enum Classification {
   War,
   Magic,
diff --git a/src/jobs/combat.rs b/src/jobs/combat.rs
index aee5d0e..82e89c7 100644
--- a/src/jobs/combat.rs
+++ b/src/jobs/combat.rs
@@ -12,6 +12,7 @@ use std::str::FromStr;
 /// The Disciple of War and Disciple of Magic jobs available in the game.
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[cfg_attr(feature = "with_serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "with_serde", serde(rename_all = "snake_case"))]
 pub enum Job {
   // DPS
   Bard,
diff --git a/src/jobs/non_combat.rs b/src/jobs/non_combat.rs
index 21b4bf5..dd4ad13 100644
--- a/src/jobs/non_combat.rs
+++ b/src/jobs/non_combat.rs
@@ -10,6 +10,7 @@ use std::str::FromStr;
 /// The Disciple of the Land and Disciple of the Hand jobs available in the game.
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[cfg_attr(feature = "with_serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "with_serde", serde(rename_all = "snake_case"))]
 pub enum NonCombatJob {
   // Gatherers
   Botanist,
diff --git a/src/races.rs b/src/races.rs
index b3897ed..a2b3a24 100644
--- a/src/races.rs
+++ b/src/races.rs
@@ -11,6 +11,7 @@ use std::str::FromStr;
 /// The playable races in the game.
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[cfg_attr(feature = "with_serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "with_serde", serde(rename_all = "snake_case"))]
 pub enum Race {
   AuRa,
   Elezen,
diff --git a/src/roles.rs b/src/roles.rs
index 0398220..c41f4ec 100644
--- a/src/roles.rs
+++ b/src/roles.rs
@@ -12,6 +12,7 @@ use std::str::FromStr;
 /// [`Job`]: ::jobs::Job
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[cfg_attr(feature = "with_serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "with_serde", serde(rename_all = "snake_case"))]
 pub enum Role {
   Dps,
   Healer,
diff --git a/src/worlds.rs b/src/worlds.rs
index b3d4359..247fc43 100644
--- a/src/worlds.rs
+++ b/src/worlds.rs
@@ -12,6 +12,7 @@ use std::str::FromStr;
 /// Each [`DataCenter`] has multiple worlds attached to it.
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[cfg_attr(feature = "with_serde", derive(Serialize, Deserialize))]
+#[cfg_attr(feature = "with_serde", serde(rename_all = "snake_case"))]
 pub enum World {
   // Aether
   Adamantoise,