diff --git a/idea/src/org/jetbrains/kotlin/idea/presentation/KtModuleSpecificListCellRenderer.kt b/idea/src/org/jetbrains/kotlin/idea/presentation/KtModuleSpecificListCellRenderer.kt
index 6219c4339af..abf7f8f0620 100644
--- a/idea/src/org/jetbrains/kotlin/idea/presentation/KtModuleSpecificListCellRenderer.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/presentation/KtModuleSpecificListCellRenderer.kt
@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.idea.presentation
 
 import com.intellij.ide.util.PsiElementListCellRenderer
+import com.intellij.openapi.application.runReadAction
 import com.intellij.psi.NavigatablePsiElement
 import org.jetbrains.kotlin.idea.util.module
 
@@ -14,7 +15,9 @@ abstract class KtModuleSpecificListCellRenderer<T : NavigatablePsiElement> : Psi
 
     override fun getComparingObject(element: T?): Comparable<Nothing> {
         val baseText = super.getComparingObject(element)
-        val moduleName = element?.module?.name ?: return baseText
+        val moduleName = runReadAction {
+            element?.module?.name
+        } ?: return baseText
         return "$baseText [$moduleName]"
     }
 }
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