diff --git a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/project/AnalyzerFacadeProvider.kt b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/project/AnalyzerFacadeProvider.kt
index c1de3f55a79..75c53c09f61 100644
--- a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/project/AnalyzerFacadeProvider.kt
+++ b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/project/AnalyzerFacadeProvider.kt
@@ -29,7 +29,7 @@ object AnalyzerFacadeProvider {
     // otherwise we would be forced to add casts on the call site of setupResolverForProject
     fun getAnalyzerFacade(targetPlatform: TargetPlatform): AnalyzerFacade<JvmPlatformParameters> {
         return when (targetPlatform) {
-            JvmPlatform -> JvmAnalyzerFacade
+            is JvmPlatform -> JvmAnalyzerFacade
             JsPlatform -> JsAnalyzerFacade
             else -> throw IllegalArgumentException("Unsupported platform: $targetPlatform")
         }
diff --git a/idea/idea-completion/tests/org/jetbrains/kotlin/idea/completion/test/ExpectedCompletionUtils.kt b/idea/idea-completion/tests/org/jetbrains/kotlin/idea/completion/test/ExpectedCompletionUtils.kt
index 7e5f72c024f..b0c161bf753 100644
--- a/idea/idea-completion/tests/org/jetbrains/kotlin/idea/completion/test/ExpectedCompletionUtils.kt
+++ b/idea/idea-completion/tests/org/jetbrains/kotlin/idea/completion/test/ExpectedCompletionUtils.kt
@@ -140,7 +140,7 @@ object ExpectedCompletionUtils {
 
     fun itemsShouldExist(fileText: String, platform: TargetPlatform?): Array<CompletionProposal> {
         return when (platform) {
-            JvmPlatform -> processProposalAssertions(fileText, EXIST_LINE_PREFIX, EXIST_JAVA_ONLY_LINE_PREFIX)
+            is JvmPlatform -> processProposalAssertions(fileText, EXIST_LINE_PREFIX, EXIST_JAVA_ONLY_LINE_PREFIX)
             JsPlatform -> processProposalAssertions(fileText, EXIST_LINE_PREFIX, EXIST_JS_ONLY_LINE_PREFIX)
             null -> processProposalAssertions(fileText, EXIST_LINE_PREFIX)
             else -> throw IllegalArgumentException(UNSUPPORTED_PLATFORM_MESSAGE)
@@ -149,7 +149,7 @@ object ExpectedCompletionUtils {
 
     fun itemsShouldAbsent(fileText: String, platform: TargetPlatform?): Array<CompletionProposal> {
         return when (platform) {
-            JvmPlatform -> processProposalAssertions(fileText, ABSENT_LINE_PREFIX, ABSENT_JAVA_LINE_PREFIX, EXIST_JS_ONLY_LINE_PREFIX)
+            is JvmPlatform -> processProposalAssertions(fileText, ABSENT_LINE_PREFIX, ABSENT_JAVA_LINE_PREFIX, EXIST_JS_ONLY_LINE_PREFIX)
             JsPlatform -> processProposalAssertions(fileText, ABSENT_LINE_PREFIX, ABSENT_JS_LINE_PREFIX, EXIST_JAVA_ONLY_LINE_PREFIX)
             null -> processProposalAssertions(fileText, ABSENT_LINE_PREFIX)
             else -> throw IllegalArgumentException(UNSUPPORTED_PLATFORM_MESSAGE)
@@ -185,7 +185,7 @@ object ExpectedCompletionUtils {
     fun getExpectedNumber(fileText: String, platform: TargetPlatform?): Int? {
         return when (platform) {
             null -> InTextDirectivesUtils.getPrefixedInt(fileText, NUMBER_LINE_PREFIX)
-            JvmPlatform -> getPlatformExpectedNumber(fileText, NUMBER_JAVA_LINE_PREFIX)
+            is JvmPlatform -> getPlatformExpectedNumber(fileText, NUMBER_JAVA_LINE_PREFIX)
             JsPlatform -> getPlatformExpectedNumber(fileText, NUMBER_JS_LINE_PREFIX)
             else -> throw IllegalArgumentException(UNSUPPORTED_PLATFORM_MESSAGE)
         }
diff --git a/idea/src/org/jetbrains/kotlin/idea/actions/ConfigureKotlinInProjectAction.kt b/idea/src/org/jetbrains/kotlin/idea/actions/ConfigureKotlinInProjectAction.kt
index 24c21ab0d86..74b59f3d14a 100644
--- a/idea/src/org/jetbrains/kotlin/idea/actions/ConfigureKotlinInProjectAction.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/actions/ConfigureKotlinInProjectAction.kt
@@ -60,6 +60,6 @@ class ConfigureKotlinJsInProjectAction: ConfigureKotlinInProjectAction() {
 
 class ConfigureKotlinJavaInProjectAction: ConfigureKotlinInProjectAction() {
     override fun getApplicableConfigurators(project: Project) = getAbleToRunConfigurators(project).filter {
-        it.targetPlatform == JvmPlatform
+        it.targetPlatform is JvmPlatform
     }
 }
\ No newline at end of file