diff --git a/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoskills/EcoSkillsPlugin.kt b/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoskills/EcoSkillsPlugin.kt
index b3fabdc..d0826e2 100644
--- a/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoskills/EcoSkillsPlugin.kt
+++ b/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoskills/EcoSkillsPlugin.kt
@@ -69,7 +69,7 @@ class EcoSkillsPlugin : LibreforgePlugin() {
     override fun handleEnable() {
         registerHolderProvider { player ->
             (Effects.values() union Stats.values())
-                .map { it.getLevelHolder(it.getActualLevel(player)) }
+                .mapNotNull { it.getLevelHolder(it.getActualLevel(player)) }
                 .map { SimpleProvidedHolder(it) }
         }
 
diff --git a/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoskills/LevellableWithHolder.kt b/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoskills/LevellableWithHolder.kt
index 616f4da..c62a5d4 100644
--- a/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoskills/LevellableWithHolder.kt
+++ b/eco-core/core-plugin/src/main/kotlin/com/willfp/ecoskills/LevellableWithHolder.kt
@@ -30,7 +30,7 @@ abstract class LevellableWithHolder(
         )
     }
 
-    fun getLevelHolder(level: Int): Holder = levels.getOrPut(level) {
+    fun getLevelHolder(level: Int): Holder? = if (level == 0) null else levels.getOrPut(level) {
         LevelHolder(level, conditions, effects)
     }