diff --git a/idea/jvm-debugger/jvm-debugger-core/src/org/jetbrains/kotlin/idea/debugger/debuggerUtil.kt b/idea/jvm-debugger/jvm-debugger-core/src/org/jetbrains/kotlin/idea/debugger/debuggerUtil.kt
index ba5f23e8f38..3cd269ead04 100644
--- a/idea/jvm-debugger/jvm-debugger-core/src/org/jetbrains/kotlin/idea/debugger/debuggerUtil.kt
+++ b/idea/jvm-debugger/jvm-debugger-core/src/org/jetbrains/kotlin/idea/debugger/debuggerUtil.kt
@@ -32,9 +32,12 @@ import org.jetbrains.kotlin.resolve.inline.InlineUtil
 import java.util.*
 
 fun Location.isInKotlinSources(): Boolean {
-    val declaringType = declaringType()
-    val fileExtension = declaringType.safeSourceName()?.substringAfterLast('.')?.toLowerCase() ?: ""
-    return fileExtension in KotlinFileTypeFactory.KOTLIN_EXTENSIONS || declaringType.containsKotlinStrata()
+    return declaringType().isInKotlinSources()
+}
+
+fun ReferenceType.isInKotlinSources(): Boolean {
+    val fileExtension = safeSourceName()?.substringAfterLast('.')?.toLowerCase() ?: ""
+    return fileExtension in KotlinFileTypeFactory.KOTLIN_EXTENSIONS || containsKotlinStrata()
 }
 
 fun ReferenceType.containsKotlinStrata() = availableStrata().contains(KOTLIN_STRATA_NAME)
diff --git a/idea/jvm-debugger/jvm-debugger-core/src/org/jetbrains/kotlin/idea/debugger/render/KotlinClassWithDelegatedPropertyRenderer.kt b/idea/jvm-debugger/jvm-debugger-core/src/org/jetbrains/kotlin/idea/debugger/render/KotlinClassWithDelegatedPropertyRenderer.kt
index 77bcb035541..f2dc862dbb9 100644
--- a/idea/jvm-debugger/jvm-debugger-core/src/org/jetbrains/kotlin/idea/debugger/render/KotlinClassWithDelegatedPropertyRenderer.kt
+++ b/idea/jvm-debugger/jvm-debugger-core/src/org/jetbrains/kotlin/idea/debugger/render/KotlinClassWithDelegatedPropertyRenderer.kt
@@ -19,9 +19,7 @@ import com.intellij.debugger.ui.tree.render.DescriptorLabelListener
 import com.intellij.openapi.diagnostic.Logger
 import com.intellij.xdebugger.settings.XDebuggerSettingsManager
 import com.sun.jdi.*
-import org.jetbrains.kotlin.idea.debugger.KotlinDebuggerSettings
-import org.jetbrains.kotlin.idea.debugger.ToggleKotlinVariablesState
-import org.jetbrains.kotlin.idea.debugger.canRunEvaluation
+import org.jetbrains.kotlin.idea.debugger.*
 import org.jetbrains.kotlin.load.java.JvmAbi
 import java.util.*
 
@@ -33,12 +31,7 @@ class KotlinClassWithDelegatedPropertyRenderer : ClassRenderer() {
     private val rendererSettings = NodeRendererSettings.getInstance()
 
     override fun isApplicable(jdiType: Type?): Boolean {
-        if (!super.isApplicable(jdiType)) return false
-
-        if (jdiType !is ReferenceType) return false
-
-        if (!jdiType.isPrepared) {
-            LOG.info(notPreparedClassMessage(jdiType))
+        if (!super.isApplicable(jdiType) || jdiType !is ReferenceType || !jdiType.isPrepared || !jdiType.isInKotlinSources()) {
             return false
         }