diff --git a/core/descriptor.loader.java/src/org/jetbrains/kotlin/load/kotlin/KotlinJvmBinarySourceElement.kt b/core/descriptor.loader.java/src/org/jetbrains/kotlin/load/kotlin/KotlinJvmBinarySourceElement.kt
index 672d3a45fae..249f2501b59 100644
--- a/core/descriptor.loader.java/src/org/jetbrains/kotlin/load/kotlin/KotlinJvmBinarySourceElement.kt
+++ b/core/descriptor.loader.java/src/org/jetbrains/kotlin/load/kotlin/KotlinJvmBinarySourceElement.kt
@@ -18,4 +18,6 @@ package org.jetbrains.kotlin.load.kotlin
 
 import org.jetbrains.kotlin.descriptors.SourceElement
 
-public class KotlinJvmBinarySourceElement(public val binaryClass: KotlinJvmBinaryClass) : SourceElement
\ No newline at end of file
+public class KotlinJvmBinarySourceElement(public val binaryClass: KotlinJvmBinaryClass) : SourceElement {
+    override fun toString() = javaClass.name + ": " + binaryClass.toString()
+}
diff --git a/core/descriptors.runtime/src/org/jetbrains/kotlin/load/java/components/RuntimeSourceElementFactory.kt b/core/descriptors.runtime/src/org/jetbrains/kotlin/load/java/components/RuntimeSourceElementFactory.kt
index 35e785fa20f..4282a6e544e 100644
--- a/core/descriptors.runtime/src/org/jetbrains/kotlin/load/java/components/RuntimeSourceElementFactory.kt
+++ b/core/descriptors.runtime/src/org/jetbrains/kotlin/load/java/components/RuntimeSourceElementFactory.kt
@@ -22,7 +22,9 @@ import org.jetbrains.kotlin.load.java.structure.JavaElement
 import org.jetbrains.kotlin.load.java.structure.reflect.ReflectJavaElement
 
 public object RuntimeSourceElementFactory : JavaSourceElementFactory {
-    private class RuntimeSourceElement(override val javaElement: ReflectJavaElement) : JavaSourceElement
+    private class RuntimeSourceElement(override val javaElement: ReflectJavaElement) : JavaSourceElement {
+        override fun toString() = javaClass.name + ": " + javaElement.toString()
+    }
 
     override fun source(javaElement: JavaElement) = RuntimeSourceElement(javaElement as ReflectJavaElement)
 }