diff --git a/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/PropertyLazyInitLowering.kt b/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/PropertyLazyInitLowering.kt
index 23ef4a638dc..9bf85282574 100644
--- a/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/PropertyLazyInitLowering.kt
+++ b/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/PropertyLazyInitLowering.kt
@@ -50,11 +50,13 @@ class PropertyLazyInitLowering(
         if (container !is IrField && container !is IrSimpleFunction && container !is IrProperty)
             return
 
-        if (container.origin !in compatibleOrigins) return
+        if (!container.isCompatibleDeclaration()) return
 
         val file = container.parent as? IrFile
             ?: return
 
+        container.assertCompatibleDeclaration()
+
         val initFun = (when {
             file in fileToInitializationFuns -> fileToInitializationFuns[file]
             fileToInitializerPureness[file] == true -> null
@@ -242,7 +244,10 @@ class RemoveInitializersForLazyProperties(
         declaration.correspondingProperty
             ?.takeIf { it.isForLazyInit() }
             ?.backingField
-            ?.let { it.initializer = null }
+            ?.let {
+                it.assertCompatibleDeclaration()
+                it.initializer = null
+            }
 
         return null
     }
@@ -298,9 +303,14 @@ private fun IrDeclaration.propertyWithPersistentSafe(transform: IrDeclaration.()
 private fun IrDeclaration.isCompatibleDeclaration() =
     origin in compatibleOrigins
 
+private fun IrDeclaration.assertCompatibleDeclaration() {
+    assert((this as? PersistentIrElementBase<*>)?.createdOn?.let { it == 0 } != false)
+}
+
 private val compatibleOrigins = listOf(
     IrDeclarationOrigin.DEFINED,
     IrDeclarationOrigin.DELEGATED_PROPERTY_ACCESSOR,
+    IrDeclarationOrigin.PROPERTY_DELEGATE,
     IrDeclarationOrigin.DEFAULT_PROPERTY_ACCESSOR,
     IrDeclarationOrigin.PROPERTY_BACKING_FIELD,
 )
\ No newline at end of file
diff --git a/compiler/testData/codegen/box/properties/noInitializationLazilyOnNonPropertiesCall.kt b/compiler/testData/codegen/box/properties/noInitializationLazilyOnNonPropertiesCall.kt
index d0aceeec2e5..91c7a177628 100644
--- a/compiler/testData/codegen/box/properties/noInitializationLazilyOnNonPropertiesCall.kt
+++ b/compiler/testData/codegen/box/properties/noInitializationLazilyOnNonPropertiesCall.kt
@@ -1,12 +1,17 @@
 // TARGET_BACKEND: JS_IR
 // DONT_TARGET_EXACT_BACKEND: WASM
 // PROPERTY_LAZY_INITIALIZATION
+// KJS_WITH_FULL_RUNTIME
 
 // FILE: A.kt
 val a1 = "a".let {
     it + "a"
 }
 
+val b1 by lazy {
+    "b1"
+}
+
 object A {
     private val foo = "foo"
     val foo2 = foo