diff --git a/platform/platform-impl/src/com/intellij/ide/util/propertyService.kt b/platform/platform-impl/src/com/intellij/ide/util/propertyService.kt
index 70e7dfc7a7bc..5d9398755f02 100644
--- a/platform/platform-impl/src/com/intellij/ide/util/propertyService.kt
+++ b/platform/platform-impl/src/com/intellij/ide/util/propertyService.kt
@@ -40,7 +40,7 @@ sealed class BasePropertyService : PropertiesComponent(), PersistentStateCompone
   }
 
   private fun doPut(key: String, value: String): Boolean {
-    if (keyToString.put(key, value) === value) {
+    if (keyToString.put(key, value) == value) {
       return false
     }
     else {