diff --git a/paper-api/src/main/java/org/bukkit/entity/CreatureType.java b/paper-api/src/main/java/org/bukkit/entity/CreatureType.java
index 086e646210..a442c875e3 100644
--- a/paper-api/src/main/java/org/bukkit/entity/CreatureType.java
+++ b/paper-api/src/main/java/org/bukkit/entity/CreatureType.java
@@ -15,7 +15,8 @@ public enum CreatureType {
     SKELETON("Skeleton"),
     SPIDER("Spider"),
     ZOMBIE("Zombie"),
-    SQUID("Squid");
+    SQUID("Squid"),
+    SLIME("Slime");
 
     private String name;
 
diff --git a/paper-api/src/main/java/org/bukkit/entity/MobType.java b/paper-api/src/main/java/org/bukkit/entity/MobType.java
index b3d1480060..1a07f6416b 100644
--- a/paper-api/src/main/java/org/bukkit/entity/MobType.java
+++ b/paper-api/src/main/java/org/bukkit/entity/MobType.java
@@ -18,7 +18,8 @@ public enum MobType {
     SKELETON("Skeleton"),
     SPIDER("Spider"),
     ZOMBIE("Zombie"),
-    SQUID("Squid");
+    SQUID("Squid"),
+    SLIME("Slime");
 
     private String name;