diff --git a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/project/IdeaModuleInfos.kt b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/project/IdeaModuleInfos.kt
index 7ca053f60b5..09001b9c426 100644
--- a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/project/IdeaModuleInfos.kt
+++ b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/project/IdeaModuleInfos.kt
@@ -401,7 +401,11 @@ abstract class LibraryInfo(override val project: Project, val library: Library)
         return (other is LibraryInfo && library == other.library)
     }
 
-    override fun hashCode(): Int = 43 * library.hashCode()
+    private val lazyHashCode: Int by lazy {
+        43 * library.hashCode()
+    }
+
+    override fun hashCode(): Int = lazyHashCode
 }
 
 data class LibrarySourceInfo(override val project: Project, val library: Library, override val binariesModuleInfo: BinaryModuleInfo) :