diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/registry/CreativeTabs.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/registry/CreativeTabs.kt
index 59dae9636..131ca7ba9 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/registry/CreativeTabs.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/registry/CreativeTabs.kt
@@ -68,7 +68,9 @@ private fun CreativeModeTab.Output.energized(value: Item) {
 	val stack = ItemStack(value, 1)
 	val energy = stack.matteryEnergy ?: throw IllegalArgumentException("${value.registryName} does not implement mattery energy capability")
 	energy.fillBattery()
-	accept(stack)
+
+	if (ItemStack(value, 1).matteryEnergy!!.batteryLevel != energy.batteryLevel)
+		accept(stack)
 }
 
 private fun CreativeModeTab.Output.energized(values: Iterable<Item>) {
@@ -84,7 +86,9 @@ private fun CreativeModeTab.Output.mattery(value: Item) {
 	val matter = stack.matter ?: throw IllegalArgumentException("${value.registryName} does not implement matter capability")
 
 	matter.fillMatter()
-	accept(stack)
+
+	if (ItemStack(value, 1).matter!!.storedMatter != matter.storedMatter)
+		accept(stack)
 }
 
 private fun CreativeModeTab.Output.mattery(values: Iterable<Item>) {