diff --git a/codegen/build.gradle.kts b/codegen/build.gradle.kts
index ad18ce1db319..99f46981fdc4 100644
--- a/codegen/build.gradle.kts
+++ b/codegen/build.gradle.kts
@@ -93,7 +93,7 @@ subprojects {
             archiveClassifier.set("sources")
             // Add explicit dependency on the task that generates resources
             dependsOn("set-aws-sdk-versions")
-            duplicatesStrategy = DuplicatesStrategy.INCLUDE
+            duplicatesStrategy = DuplicatesStrategy.EXCLUDE
         }
 
         tasks.register<Jar>("javadocJar") {