diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/descriptors/IrBasedDescriptors.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/descriptors/IrBasedDescriptors.kt
index 30ed8469043..9e58a69d64a 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/descriptors/IrBasedDescriptors.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/descriptors/IrBasedDescriptors.kt
@@ -304,6 +304,7 @@ open class IrBasedTypeParameterDescriptor(owner: IrTypeParameter) : TypeParamete
         visitor!!.visitTypeParameterDescriptor(this, null)
     }
 
+    override fun toString(): String = super.toString() + "\nParent: $containingDeclaration"
 }
 
 fun IrTypeParameter.toIrBasedDescriptor() = IrBasedTypeParameterDescriptor(this)