diff --git a/core/common/src/main/kotlin/com/willfp/libreforge/filters/Filter.kt b/core/common/src/main/kotlin/com/willfp/libreforge/filters/Filter.kt
index 975ee030..f5e4d9e5 100644
--- a/core/common/src/main/kotlin/com/willfp/libreforge/filters/Filter.kt
+++ b/core/common/src/main/kotlin/com/willfp/libreforge/filters/Filter.kt
@@ -36,9 +36,7 @@ abstract class Filter<T, V>(
     ): Boolean {
         val cfg = config.config
 
-        val isInverted = config.isInverted ?: return true
-
-        return if (isInverted) {
+        return if (config.isInverted) {
             !isMet(data, getValue(cfg, data, "not_$id"), config.compileData)
         } else {
             isMet(data, getValue(cfg, data, id), config.compileData)
diff --git a/core/common/src/main/kotlin/com/willfp/libreforge/filters/FilterBlock.kt b/core/common/src/main/kotlin/com/willfp/libreforge/filters/FilterBlock.kt
index 9d9c1e02..158223bb 100644
--- a/core/common/src/main/kotlin/com/willfp/libreforge/filters/FilterBlock.kt
+++ b/core/common/src/main/kotlin/com/willfp/libreforge/filters/FilterBlock.kt
@@ -10,21 +10,9 @@ import com.willfp.libreforge.triggers.TriggerData
 class FilterBlock<T, V> internal constructor(
     val filter: Filter<T, V>,
     override val config: Config,
-    override val compileData: T
+    override val compileData: T,
+    val isInverted: Boolean
 ) : Compiled<T> {
-    val isInverted: Boolean? by lazy {
-        val cfg = config
-
-        val regularPresent = cfg.has(filter.id)
-        val inversePresent = cfg.has("not_${filter.id}")
-
-        if (!regularPresent && !inversePresent) {
-            null
-        } else {
-            inversePresent
-        }
-    }
-
     fun isMet(data: TriggerData) =
         filter.isMet(data, this)
 }
diff --git a/core/common/src/main/kotlin/com/willfp/libreforge/filters/Filters.kt b/core/common/src/main/kotlin/com/willfp/libreforge/filters/Filters.kt
index e8aa002a..84734cb1 100644
--- a/core/common/src/main/kotlin/com/willfp/libreforge/filters/Filters.kt
+++ b/core/common/src/main/kotlin/com/willfp/libreforge/filters/Filters.kt
@@ -52,8 +52,13 @@ object Filters : Registry<Filter<*, *>>() {
         val blocks = mutableListOf<FilterBlock<*, *>>()
 
         for (key in config.getKeys(false)) {
-            val filter = get(key) ?: get(key.removePrefix("not_")) ?: continue
-            blocks += makeBlock(filter, config, context) ?: continue
+            if (key.startsWith("not_")) {
+                val filter = get(key.removePrefix("not_")) ?: continue
+                blocks += makeBlock(filter, config, true, context) ?: continue
+            } else {
+                val filter = get(key) ?: continue
+                blocks += makeBlock(filter, config, false, context) ?: continue
+            }
         }
 
         return FilterList(blocks)
@@ -62,6 +67,7 @@ object Filters : Registry<Filter<*, *>>() {
     private fun <T, V> makeBlock(
         filter: Filter<T, V>,
         config: Config,
+        inverted: Boolean,
         context: ViolationContext
     ): FilterBlock<T, V>? {
         if (filter.deprecationMessage != null) {
@@ -77,14 +83,14 @@ object Filters : Registry<Filter<*, *>>() {
             return null
         }
 
-        val configKey = if (config.has("not_${filter.id}")) {
+        val configKey = if (inverted) {
             "not_${filter.id}"
         } else {
             filter.id
         }
 
         val compileData = filter.makeCompileData(config, context, filter.getValue(config, null, configKey))
-        return FilterBlock(filter, config, compileData)
+        return FilterBlock(filter, config, compileData, inverted)
     }
 
     init {