diff --git a/idea/idea-jvm/src/org/jetbrains/kotlin/idea/debugger/DelegateSourcePosition.kt b/idea/idea-jvm/src/org/jetbrains/kotlin/idea/debugger/DelegateSourcePosition.kt
index 11f5bfbecfb..9481d689fb0 100644
--- a/idea/idea-jvm/src/org/jetbrains/kotlin/idea/debugger/DelegateSourcePosition.kt
+++ b/idea/idea-jvm/src/org/jetbrains/kotlin/idea/debugger/DelegateSourcePosition.kt
@@ -23,7 +23,7 @@ import com.intellij.psi.PsiFile
 
 abstract class DelegateSourcePosition(private var delegate: SourcePosition) : SourcePosition() {
     override fun getFile(): PsiFile = delegate.file
-    override fun getElementAt(): PsiElement = delegate.elementAt
+    override fun getElementAt(): PsiElement? = delegate.elementAt
     override fun getLine(): Int = delegate.line
     override fun getOffset(): Int = delegate.offset