diff --git a/platform/lang-impl/src/com/intellij/execution/impl/RunManagerImpl.kt b/platform/lang-impl/src/com/intellij/execution/impl/RunManagerImpl.kt
index 713620caa6c5..641d4cf9dd40 100644
--- a/platform/lang-impl/src/com/intellij/execution/impl/RunManagerImpl.kt
+++ b/platform/lang-impl/src/com/intellij/execution/impl/RunManagerImpl.kt
@@ -1015,4 +1015,4 @@ private inline fun Collection<RunnerAndConfigurationSettings>.forEachManaged(han
 }
 
 internal val ConfigurationType.isManaged: Boolean
-  get() = this is UnknownRunConfiguration
\ No newline at end of file
+  get() = this !is UnknownConfigurationType
\ No newline at end of file