diff --git a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/calls/Candidate.kt b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/calls/Candidate.kt
index b9ef206b0d4..02e5f8b0b36 100644
--- a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/calls/Candidate.kt
+++ b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/calls/Candidate.kt
@@ -85,7 +85,7 @@ class Candidate(
 ) {
 
     var systemInitialized: Boolean = false
-    val system: NewConstraintSystemImpl by lazy {
+    val system: NewConstraintSystemImpl by lazy(LazyThreadSafetyMode.NONE) {
         val system = constraintSystemFactory.createConstraintSystem()
         system.addOtherSystem(baseSystem)
         systemInitialized = true