diff --git a/plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/KotlinUastLanguagePlugin.kt b/plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/KotlinUastLanguagePlugin.kt
index b221083ec70..30d5faa8613 100644
--- a/plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/KotlinUastLanguagePlugin.kt
+++ b/plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/KotlinUastLanguagePlugin.kt
@@ -574,8 +574,11 @@ internal object KotlinConverter {
         expectedTypes: Array<out Class<out UElement>>
     ): Sequence<UElement> = expectedTypes.accommodate(
         alternative uParam@{
-            val ownerFunction = element.ownerFunction as? KtFunction ?: return@uParam null
-            val lightMethod = LightClassUtil.getLightClassMethod(ownerFunction) ?: return@uParam null
+            val lightMethod = when (val ownerFunction = element.ownerFunction) {
+                is KtFunction -> LightClassUtil.getLightClassMethod(ownerFunction)
+                is KtPropertyAccessor -> LightClassUtil.getLightClassAccessorMethod(ownerFunction)
+                else -> null
+            } ?: return@uParam null
             val lightParameter = lightMethod.parameterList.parameters.find { it.name == element.name } ?: return@uParam null
             KotlinUParameter(lightParameter, element, givenParent)
         },
diff --git a/plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/KotlinUastLanguagePlugin.kt.182 b/plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/KotlinUastLanguagePlugin.kt.182
index 543409060e6..44dd123fdd9 100644
--- a/plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/KotlinUastLanguagePlugin.kt.182
+++ b/plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/KotlinUastLanguagePlugin.kt.182
@@ -474,8 +474,11 @@ internal object KotlinConverter {
                     }
 
                 is KtParameter -> el<UParameter> {
-                    val ownerFunction = original.ownerFunction as? KtFunction ?: return null
-                    val lightMethod = LightClassUtil.getLightClassMethod(ownerFunction) ?: return null
+                    val lightMethod = when (val ownerFunction = original.ownerFunction) {
+                        is KtFunction -> LightClassUtil.getLightClassMethod(ownerFunction)
+                        is KtPropertyAccessor -> LightClassUtil.getLightClassAccessorMethod(ownerFunction)
+                        else -> null
+                    } ?: return null
                     val lightParameter = lightMethod.parameterList.parameters.find { it.name == original.name } ?: return null
                     KotlinUParameter(lightParameter, original, givenParent)
                 }
diff --git a/plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/KotlinUastLanguagePlugin.kt.183 b/plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/KotlinUastLanguagePlugin.kt.183
index 9b9a2daaf54..f81e66c6eff 100644
--- a/plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/KotlinUastLanguagePlugin.kt.183
+++ b/plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/KotlinUastLanguagePlugin.kt.183
@@ -476,8 +476,11 @@ internal object KotlinConverter {
                     }
 
                 is KtParameter -> el<UParameter> {
-                    val ownerFunction = original.ownerFunction as? KtFunction ?: return null
-                    val lightMethod = LightClassUtil.getLightClassMethod(ownerFunction) ?: return null
+                    val lightMethod = when (val ownerFunction = original.ownerFunction) {
+                        is KtFunction -> LightClassUtil.getLightClassMethod(ownerFunction)
+                        is KtPropertyAccessor -> LightClassUtil.getLightClassAccessorMethod(ownerFunction)
+                        else -> null
+                    } ?: return null
                     val lightParameter = lightMethod.parameterList.parameters.find { it.name == original.name } ?: return null
                     KotlinUParameter(lightParameter, original, givenParent)
                 }