diff --git a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/FirSpecialTowerDataContexts.kt b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/FirSpecialTowerDataContexts.kt
index 4a91d26007f..87dbcbaaf2b 100644
--- a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/FirSpecialTowerDataContexts.kt
+++ b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/FirSpecialTowerDataContexts.kt
@@ -10,8 +10,8 @@ import org.jetbrains.kotlin.fir.expressions.FirCallableReferenceAccess
 import org.jetbrains.kotlin.fir.symbols.impl.FirAnonymousFunctionSymbol
 
 class FirSpecialTowerDataContexts {
-    val towerDataContextForAnonymousFunctions: MutableMap<FirAnonymousFunctionSymbol, FirTowerDataContext> = mutableMapOf()
-    val towerDataContextForCallableReferences: MutableMap<FirCallableReferenceAccess, FirTowerDataContext> = mutableMapOf()
+    private val towerDataContextForAnonymousFunctions: MutableMap<FirAnonymousFunctionSymbol, FirTowerDataContext> = mutableMapOf()
+    private val towerDataContextForCallableReferences: MutableMap<FirCallableReferenceAccess, FirTowerDataContext> = mutableMapOf()
 
     fun getAnonymousFunctionContext(symbol: FirAnonymousFunctionSymbol): FirTowerDataContext? {
         return towerDataContextForAnonymousFunctions[symbol]
@@ -46,4 +46,4 @@ class FirSpecialTowerDataContexts {
         towerDataContextForAnonymousFunctions.clear()
         towerDataContextForCallableReferences.clear()
     }
-}
\ No newline at end of file
+}