diff --git a/src/main/kotlin/com/github/jengelman/gradle/plugins/shadow/internal/DefaultDependencyFilter.kt b/src/main/kotlin/com/github/jengelman/gradle/plugins/shadow/internal/DefaultDependencyFilter.kt
index 309e27081..0333c869a 100644
--- a/src/main/kotlin/com/github/jengelman/gradle/plugins/shadow/internal/DefaultDependencyFilter.kt
+++ b/src/main/kotlin/com/github/jengelman/gradle/plugins/shadow/internal/DefaultDependencyFilter.kt
@@ -13,7 +13,8 @@ internal class DefaultDependencyFilter(
     excludedDependencies: MutableSet<ResolvedDependency>,
   ) {
     dependencies.forEach {
-      if (if (it.isIncluded()) includedDependencies.add(it) else excludedDependencies.add(it)) {
+      val added = if (it.isIncluded()) includedDependencies.add(it) else excludedDependencies.add(it)
+      if (added) {
         resolve(it.children, includedDependencies, excludedDependencies)
       }
     }