diff --git a/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/JsIntrinsics.kt b/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/JsIntrinsics.kt
index f58a6310878..d20400aab4a 100644
--- a/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/JsIntrinsics.kt
+++ b/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/JsIntrinsics.kt
@@ -17,11 +17,9 @@ import org.jetbrains.kotlin.ir.declarations.IrSimpleFunction
 import org.jetbrains.kotlin.ir.declarations.impl.IrExternalPackageFragmentImpl
 import org.jetbrains.kotlin.ir.descriptors.IrBuiltIns
 import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
-import org.jetbrains.kotlin.ir.types.IrType
-import org.jetbrains.kotlin.ir.types.defaultType
+import org.jetbrains.kotlin.ir.types.*
 import org.jetbrains.kotlin.ir.types.impl.IrSimpleTypeBuilder
 import org.jetbrains.kotlin.ir.types.impl.buildSimpleType
-import org.jetbrains.kotlin.ir.types.isLong
 import org.jetbrains.kotlin.ir.util.constructors
 import org.jetbrains.kotlin.ir.util.findDeclaration
 import org.jetbrains.kotlin.ir.util.kotlinPackageFqn
@@ -169,7 +167,9 @@ class JsIntrinsics(private val irBuiltIns: IrBuiltIns, val context: JsIrBackendC
     val jsGetContinuation = getInternalFunction("getContinuation")
     val jsGetKClass = getInternalWithoutPackage("getKClass")
     val jsGetKClassFromExpression = getInternalWithoutPackage("getKClassFromExpression")
-    val jsClass = getInternalFunction("jsClass")
+
+    private val jsClassClassSymbol = getInternalClassWithoutPackage("kotlin.js.JsClass")
+    val jsClass = defineJsClassIntrinsic().symbol
 
     val jsNumberRangeToNumber = getInternalFunction("numberRangeToNumber")
     val jsNumberRangeToLong = getInternalFunction("numberRangeToLong")
@@ -448,6 +448,21 @@ class JsIntrinsics(private val irBuiltIns: IrBuiltIns, val context: JsIrBackendC
         }
     }
 
+    private fun defineJsClassIntrinsic(): IrSimpleFunction {
+        return irFactory.addFunction(externalPackageFragment) {
+            name = Name.identifier("jsClass")
+            origin = JsLoweredDeclarationOrigin.JS_INTRINSICS_STUB
+            isInline = true
+        }.apply {
+            val typeParameter = addTypeParameter {
+                name = Name.identifier("T")
+                isReified = true
+                superTypes += irBuiltIns.anyType
+            }
+            returnType = jsClassClassSymbol.typeWithParameters(listOf(typeParameter))
+        }
+    }
+
     private fun unOp(name: String, returnType: IrType = irBuiltIns.anyNType) =
         irBuiltIns.run { defineOperator(name, returnType, listOf(anyNType)) }
 
diff --git a/libraries/stdlib/js-ir/src/kotlin/jsClass_js-ir.kt b/libraries/stdlib/js-ir/src/kotlin/jsClass_js-ir.kt
deleted file mode 100644
index a538c7268d8..00000000000
--- a/libraries/stdlib/js-ir/src/kotlin/jsClass_js-ir.kt
+++ /dev/null
@@ -1,8 +0,0 @@
-/*
- * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package kotlin.js
-
-internal inline fun <reified T : Any> jsClass(): JsClass<T> = throw NotImplementedError("Implemented as intrinsic")