diff --git a/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/JsIrBackendContext.kt b/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/JsIrBackendContext.kt
index d5a73edef18..aaab7c944ff 100644
--- a/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/JsIrBackendContext.kt
+++ b/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/JsIrBackendContext.kt
@@ -148,7 +148,7 @@ class JsIrBackendContext(
             .filter { it.name != "LONG" && it.name != "CHAR" } // skip due to they have own explicit companions
             .map { it.typeName }
 
-        return numbers + listOf(Name.identifier("String"))
+        return numbers + listOf(Name.identifier("String"), Name.identifier("Boolean"))
     }
 
     val dynamicType: IrDynamicType = IrDynamicTypeImpl(null, emptyList(), Variance.INVARIANT)