diff --git a/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/KtFirAnalysisSessionProvider.kt b/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/KtFirAnalysisSessionProvider.kt
index 6e0e20fa258..b07b5e826b1 100644
--- a/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/KtFirAnalysisSessionProvider.kt
+++ b/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/KtFirAnalysisSessionProvider.kt
@@ -5,7 +5,6 @@
 
 package org.jetbrains.kotlin.idea.frontend.api.fir
 
-import com.intellij.openapi.application.ApplicationManager
 import com.intellij.openapi.project.Project
 import com.intellij.psi.util.CachedValueProvider
 import com.intellij.psi.util.CachedValuesManager
@@ -14,6 +13,7 @@ import org.jetbrains.kotlin.analyzer.ModuleInfo
 import org.jetbrains.kotlin.idea.caches.project.getModuleInfo
 import org.jetbrains.kotlin.idea.frontend.api.KtAnalysisSession
 import org.jetbrains.kotlin.idea.frontend.api.KtAnalysisSessionProvider
+import org.jetbrains.kotlin.idea.frontend.api.assertIsValid
 import org.jetbrains.kotlin.psi.KtElement
 import java.util.concurrent.ConcurrentHashMap
 
@@ -30,6 +30,8 @@ class KtFirAnalysisSessionProvider(project: Project) : KtAnalysisSessionProvider
         return analysisSessionByModuleInfoCache.value.getOrPut(contextElement.getModuleInfo()) {
             @Suppress("DEPRECATION")
             KtFirAnalysisSession.createForElement(contextElement)
+        }.apply {
+            assertIsValid()
         }
     }
 }
\ No newline at end of file