diff --git a/src/commonMain/kotlin/com/infendro/bytearray/ByteArray.kt b/src/commonMain/kotlin/com/infendro/bytearray/ByteArray.kt
index cb33a69..5afbd0e 100644
--- a/src/commonMain/kotlin/com/infendro/bytearray/ByteArray.kt
+++ b/src/commonMain/kotlin/com/infendro/bytearray/ByteArray.kt
@@ -52,10 +52,10 @@ fun ByteArray.padEnd(
     padByte: Byte,
 ): ByteArray {
     return buildList {
+        addAll(this)
         repeat(length - size) {
             add(padByte)
         }
-        addAll(this)
     }.toByteArray()
 }
 
diff --git a/src/commonMain/kotlin/com/infendro/bytearray/UByteArray.kt b/src/commonMain/kotlin/com/infendro/bytearray/UByteArray.kt
index de6f666..936ab5a 100644
--- a/src/commonMain/kotlin/com/infendro/bytearray/UByteArray.kt
+++ b/src/commonMain/kotlin/com/infendro/bytearray/UByteArray.kt
@@ -49,10 +49,10 @@ fun UByteArray.padEnd(
     padByte: UByte,
 ): UByteArray {
     return buildList {
+        addAll(this)
         repeat(length - size) {
             add(padByte)
         }
-        addAll(this)
     }.toUByteArray()
 }