diff --git a/idea/idea-core/src/org/jetbrains/kotlin/idea/core/ShortenReferences.kt b/idea/idea-core/src/org/jetbrains/kotlin/idea/core/ShortenReferences.kt
index 3c382cfa455..c953c09f0a3 100644
--- a/idea/idea-core/src/org/jetbrains/kotlin/idea/core/ShortenReferences.kt
+++ b/idea/idea-core/src/org/jetbrains/kotlin/idea/core/ShortenReferences.kt
@@ -33,6 +33,7 @@ import org.jetbrains.kotlin.idea.imports.getImportableTargets
 import org.jetbrains.kotlin.idea.util.ImportDescriptorResult
 import org.jetbrains.kotlin.idea.util.ImportInsertHelper
 import org.jetbrains.kotlin.idea.util.getResolutionScope
+import org.jetbrains.kotlin.idea.util.application.runWriteAction
 import org.jetbrains.kotlin.incremental.components.NoLookupLocation
 import org.jetbrains.kotlin.psi.*
 import org.jetbrains.kotlin.psi.psiUtil.getElementTextWithContext
@@ -297,7 +298,7 @@ class ShortenReferences(val options: (KtElement) -> Options = { Options.DEFAULT
         override fun qualifier(element: KtUserType) = element.qualifier!!
 
         override fun shortenElement(element: KtUserType): KtElement {
-            element.deleteQualifier()
+            runWriteAction { element.deleteQualifier() }
             return element
         }
     }