diff --git a/platform/lang-impl/src/com/intellij/openapi/fileTypes/impl/associate/OSFileAssociationPreferences.java b/platform/lang-impl/src/com/intellij/openapi/fileTypes/impl/associate/OSFileAssociationPreferences.java
index 1e57fc07ef17..c7cf56492376 100644
--- a/platform/lang-impl/src/com/intellij/openapi/fileTypes/impl/associate/OSFileAssociationPreferences.java
+++ b/platform/lang-impl/src/com/intellij/openapi/fileTypes/impl/associate/OSFileAssociationPreferences.java
@@ -63,7 +63,6 @@ public final class OSFileAssociationPreferences implements PersistentStateCompon
   }
 
   public boolean contains(@NotNull FileType fileType) {
-    //noinspection SSBasedInspection
-    return fileTypeNames.stream().anyMatch(name->name.equals(fileType.getName()));
+    return fileTypeNames.contains(fileType.getName());
   }
 }