diff --git a/platform/platform-resources/src/META-INF/LangExtensions.xml b/platform/platform-resources/src/META-INF/LangExtensions.xml
index 2fd18b84a3d1..85c757965094 100644
--- a/platform/platform-resources/src/META-INF/LangExtensions.xml
+++ b/platform/platform-resources/src/META-INF/LangExtensions.xml
@@ -94,7 +94,7 @@
     <registryKey defaultValue="true" description="Use EEL for file watching." key="use.eel.file.watcher" restartRequired="true"/>
     <registryKey defaultValue="true" key="cache.nulls.for.pushed.properties" restartRequired="true"
                  description="Cache null values for pushed properties to avoid reading nulls from disk every time."/>
-    <registryKey defaultValue="true" key="use.workspace.model.for.calculation.library.scope"
+    <registryKey defaultValue="false" key="use.workspace.model.for.calculation.library.scope"
                  description="Calculation of LibraryScopeCache using WorkspaceModel entities"/>
     <registryKey defaultValue="true" key="se.enable.non.indexable.files.contributor" restartRequired="false"
                  description="Search files in non-indexable filesets with NonIndexableFilesSEContributor"/>