diff --git a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/js/ir/KotlinBrowserJsIr.kt b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/js/ir/KotlinBrowserJsIr.kt
index 465c5e03119..89c77233099 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/js/ir/KotlinBrowserJsIr.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/js/ir/KotlinBrowserJsIr.kt
@@ -290,11 +290,11 @@ abstract class KotlinBrowserJsIr @Inject constructor(target: KotlinJsIrTarget) :
         val moduleKind = binary.linkTask.flatMap { it.compilerOptions.moduleKind }
 
         this.entryModuleName.set(entryModuleName)
-        this.esModules.set(
+        this.esModules.convention(
             project.provider {
                 platformType == KotlinPlatformType.wasm || moduleKind.get() == JsModuleKind.MODULE_ES
             }
-        )
+        ).finalizeValueOnRead()
 
         mainOutputFileName.convention(defaultArchivesName.orElse("main").map { "$it.js" }).finalizeValueOnRead()
 
diff --git a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/js/subtargets/KotlinBrowserJs.kt b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/js/subtargets/KotlinBrowserJs.kt
index 08926867c92..1394d1f10e6 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/js/subtargets/KotlinBrowserJs.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/js/subtargets/KotlinBrowserJs.kt
@@ -300,7 +300,7 @@ abstract class KotlinBrowserJs @Inject constructor(target: KotlinJsTarget) :
             }
         )
 
-        this.esModules.set(false)
+        this.esModules.convention(false).finalizeValueOnRead()
 
         resolveFromModulesFirst = true