diff --git a/libraries/reflect/build.gradle.kts b/libraries/reflect/build.gradle.kts
index 17b950af747..b884c5ce090 100644
--- a/libraries/reflect/build.gradle.kts
+++ b/libraries/reflect/build.gradle.kts
@@ -239,6 +239,7 @@ javadocJar()
 
 modularJar {
     dependsOn(intermediate)
+    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
     from {
         zipTree(intermediate.get().singleOutputFile())
     }