diff --git a/idea/testData/checker/regression/Jet53.kt b/idea/testData/checker/regression/Jet53.kt
index bb638c90294..3ebca2acc7d 100644
--- a/idea/testData/checker/regression/Jet53.kt
+++ b/idea/testData/checker/regression/Jet53.kt
@@ -1,5 +1,7 @@
+// FIR_COMPARISON
+
 import java.util.Collections
 
 fun <T> checkSubtype(t: T) = t
 
-val ab = checkSubtype<List<Int>?>(Collections.emptyList<Int>())
\ No newline at end of file
+val ab = checkSubtype<List<Int>?>(Collections.emptyList<Int>())