diff --git a/nj2k/nj2k-services/src/org/jetbrains/kotlin/nj2k/inference/common/BoundTypeCalculator.kt b/nj2k/nj2k-services/src/org/jetbrains/kotlin/nj2k/inference/common/BoundTypeCalculator.kt
index 9bad336ba93..1b2c107d2d7 100644
--- a/nj2k/nj2k-services/src/org/jetbrains/kotlin/nj2k/inference/common/BoundTypeCalculator.kt
+++ b/nj2k/nj2k-services/src/org/jetbrains/kotlin/nj2k/inference/common/BoundTypeCalculator.kt
@@ -214,7 +214,7 @@ open class BoundTypeCalculatorImpl(
                                 inferenceContext
                             ) ?: return null
                         }
-                        TypeParameter(argumentBoundType, constructor.parameters[i].variance)
+                        TypeParameter(argumentBoundType, constructor.parameters.getOrNull(i)?.variance ?: return null)
                     }
                 )