diff --git a/compiler/fir/cones/src/org/jetbrains/kotlin/fir/types/ConeTypes.kt b/compiler/fir/cones/src/org/jetbrains/kotlin/fir/types/ConeTypes.kt
index d1fd3c073a0..11d82331466 100644
--- a/compiler/fir/cones/src/org/jetbrains/kotlin/fir/types/ConeTypes.kt
+++ b/compiler/fir/cones/src/org/jetbrains/kotlin/fir/types/ConeTypes.kt
@@ -170,7 +170,7 @@ class ConeCapturedType(
         get() = emptyArray()
 }
 
-class ConeTypeVariableType(
+data class ConeTypeVariableType(
     override val nullability: ConeNullability,
     override val lookupTag: ConeClassifierLookupTag
 ) : ConeLookupTagBasedType() {