diff --git a/core/sdk-core/src/main/java/software/amazon/awssdk/core/SdkBytes.java b/core/sdk-core/src/main/java/software/amazon/awssdk/core/SdkBytes.java
index ddfe9cbb1cdf..37b113ed9fa6 100644
--- a/core/sdk-core/src/main/java/software/amazon/awssdk/core/SdkBytes.java
+++ b/core/sdk-core/src/main/java/software/amazon/awssdk/core/SdkBytes.java
@@ -77,7 +77,7 @@ public static SdkBytes fromByteArray(byte[] bytes) {
      */
     public static SdkBytes fromString(String string, Charset charset) {
         Validate.paramNotNull(string, "string");
-        Validate.paramNotNull(string, "charset");
+        Validate.paramNotNull(charset, "charset");
         return new SdkBytes(string.getBytes(charset));
     }