diff --git a/compiler/testData/codegen/box/ieee754/smartCastToDifferentTypes.kt b/compiler/testData/codegen/box/ieee754/smartCastToDifferentTypes.kt
index b57b1952186..d650d90c943 100644
--- a/compiler/testData/codegen/box/ieee754/smartCastToDifferentTypes.kt
+++ b/compiler/testData/codegen/box/ieee754/smartCastToDifferentTypes.kt
@@ -1,3 +1,4 @@
+// !LANGUAGE: -ProperIeee754Comparisons
 // IGNORE_BACKEND: JVM_IR
 // IGNORE_BACKEND: NATIVE
 // IGNORE_BACKEND: JS_IR
diff --git a/compiler/testData/codegen/box/ieee754/smartCastToDifferentTypesWithNumericPromotion.kt b/compiler/testData/codegen/box/ieee754/smartCastToDifferentTypesWithNumericPromotion.kt
index be7bd9fb8ae..9d1a089492d 100644
--- a/compiler/testData/codegen/box/ieee754/smartCastToDifferentTypesWithNumericPromotion.kt
+++ b/compiler/testData/codegen/box/ieee754/smartCastToDifferentTypesWithNumericPromotion.kt
@@ -1,3 +1,4 @@
+// !LANGUAGE: -ProperIeee754Comparisons
 // IGNORE_BACKEND: NATIVE
 // IGNORE_BACKEND: JVM_IR
 // IGNORE_BACKEND: JS_IR
diff --git a/compiler/testData/codegen/box/ieee754/when10.kt b/compiler/testData/codegen/box/ieee754/when10.kt
index 7c241185b1f..fe9646e1fbb 100644
--- a/compiler/testData/codegen/box/ieee754/when10.kt
+++ b/compiler/testData/codegen/box/ieee754/when10.kt
@@ -1,4 +1,5 @@
 // !API_VERSION: 1.0
+// !LANGUAGE: -ProperIeee754Comparisons
 // IGNORE_BACKEND: NATIVE
 // IGNORE_BACKEND: JVM_IR
 // IGNORE_BACKEND: JS_IR