diff --git a/idea/idea-fir/src/org/jetbrains/kotlin/idea/quickfix/MainKtQuickFixRegistrar.kt b/idea/idea-fir/src/org/jetbrains/kotlin/idea/quickfix/MainKtQuickFixRegistrar.kt
index da162ffb479..fc18fc20897 100644
--- a/idea/idea-fir/src/org/jetbrains/kotlin/idea/quickfix/MainKtQuickFixRegistrar.kt
+++ b/idea/idea-fir/src/org/jetbrains/kotlin/idea/quickfix/MainKtQuickFixRegistrar.kt
@@ -56,6 +56,13 @@ class MainKtQuickFixRegistrar : KtQuickFixRegistrar() {
         )
     }
 
+    private val propertyInitialization = KtQuickFixesListBuilder.registerPsiQuickFix {
+        registerPsiQuickFixes(
+            KtFirDiagnostic.MustBeInitializedOrBeAbstract::class,
+            AddModifierFix.addAbstractModifier,
+        )
+    }
+
     private val overrides = KtQuickFixesListBuilder.registerPsiQuickFix {
         registerApplicator(ChangeTypeQuickFix.changeFunctionReturnTypeOnOverride)
         registerApplicator(ChangeTypeQuickFix.changePropertyReturnTypeOnOverride)
@@ -76,6 +83,7 @@ class MainKtQuickFixRegistrar : KtQuickFixRegistrar() {
 
     override val list: KtQuickFixesList = KtQuickFixesList.createCombined(
         modifiers,
+        propertyInitialization,
         overrides,
         mutability,
         expressions,
diff --git a/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstract.kt b/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstract.kt
index 7086a2cf84c..1e580e0c92b 100644
--- a/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstract.kt
+++ b/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstract.kt
@@ -2,5 +2,3 @@
 abstract class A() {
     var <caret>i : Int
 }
-
-/* IGNORE_FIR */
\ No newline at end of file
diff --git a/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstract.kt.after b/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstract.kt.after
index b7b7f592a97..4f5c47a4130 100644
--- a/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstract.kt.after
+++ b/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstract.kt.after
@@ -2,5 +2,3 @@
 abstract class A() {
     abstract var <caret>i : Int
 }
-
-/* IGNORE_FIR */
\ No newline at end of file
diff --git a/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstractInFinalClass.kt b/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstractInFinalClass.kt
index 8dc4c132ab9..41e9d0c07e5 100644
--- a/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstractInFinalClass.kt
+++ b/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstractInFinalClass.kt
@@ -2,5 +2,3 @@
 class A() {
     var <caret>i : Int
 }
-
-/* IGNORE_FIR */
\ No newline at end of file
diff --git a/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstractInFinalClass.kt.after b/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstractInFinalClass.kt.after
index b7b7f592a97..4f5c47a4130 100644
--- a/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstractInFinalClass.kt.after
+++ b/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstractInFinalClass.kt.after
@@ -2,5 +2,3 @@
 abstract class A() {
     abstract var <caret>i : Int
 }
-
-/* IGNORE_FIR */
\ No newline at end of file
diff --git a/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstractInOpenClass.kt b/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstractInOpenClass.kt
index e3182c60c06..9e70f1c1528 100644
--- a/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstractInOpenClass.kt
+++ b/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstractInOpenClass.kt
@@ -2,5 +2,3 @@
 open class A() {
     var <caret>i : Int
 }
-
-/* IGNORE_FIR */
\ No newline at end of file
diff --git a/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstractInOpenClass.kt.after b/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstractInOpenClass.kt.after
index b7b7f592a97..4f5c47a4130 100644
--- a/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstractInOpenClass.kt.after
+++ b/idea/testData/quickfix/abstract/mustBeInitializedOrBeAbstractInOpenClass.kt.after
@@ -2,5 +2,3 @@
 abstract class A() {
     abstract var <caret>i : Int
 }
-
-/* IGNORE_FIR */
\ No newline at end of file