diff --git a/analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/sessions/LLFirLibraryOrLibrarySourceResolvableModuleSession.kt b/analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/sessions/LLFirLibraryOrLibrarySourceResolvableModuleSession.kt
index 83b8d123b12..8d257963a85 100644
--- a/analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/sessions/LLFirLibraryOrLibrarySourceResolvableModuleSession.kt
+++ b/analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/sessions/LLFirLibraryOrLibrarySourceResolvableModuleSession.kt
@@ -10,7 +10,6 @@ import org.jetbrains.kotlin.analysis.low.level.api.fir.LLFirModuleResolveCompone
 import org.jetbrains.kotlin.analysis.project.structure.KtLibraryModule
 import org.jetbrains.kotlin.analysis.project.structure.KtLibrarySourceModule
 import org.jetbrains.kotlin.analysis.project.structure.KtModule
-import org.jetbrains.kotlin.analysis.project.structure.KtNotUnderContentRootModule
 import org.jetbrains.kotlin.fir.BuiltinTypes
 
 internal class LLFirLibraryOrLibrarySourceResolvableModuleSession(
diff --git a/analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/state/LLFirSourceResolveSession.kt b/analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/state/LLFirSourceResolveSession.kt
index bd1565b7853..6e2de3cbfca 100644
--- a/analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/state/LLFirSourceResolveSession.kt
+++ b/analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/state/LLFirSourceResolveSession.kt
@@ -9,6 +9,7 @@ import com.intellij.openapi.project.Project
 import org.jetbrains.kotlin.analysis.low.level.api.fir.LLFirGlobalResolveComponents
 import org.jetbrains.kotlin.analysis.low.level.api.fir.api.DiagnosticCheckerFilter
 import org.jetbrains.kotlin.analysis.low.level.api.fir.sessions.LLFirSessionProvider
+import org.jetbrains.kotlin.analysis.project.structure.KtBuiltinsModule
 import org.jetbrains.kotlin.analysis.project.structure.KtLibraryModule
 import org.jetbrains.kotlin.analysis.project.structure.KtModule
 import org.jetbrains.kotlin.analysis.project.structure.KtSourceModule
@@ -36,6 +37,7 @@ internal class LLFirSourceResolveSession(
     override fun getModuleKind(module: KtModule): ModuleKind {
         return when (module) {
             is KtSourceModule -> ModuleKind.RESOLVABLE_MODULE
+            is KtBuiltinsModule,
             is KtLibraryModule -> ModuleKind.BINARY_MODULE
             else -> unexpectedElementError("module", module)
         }