diff --git a/compiler/frontend/src/org/jetbrains/kotlin/psi/addRemoveModifier.kt b/compiler/frontend/src/org/jetbrains/kotlin/psi/addRemoveModifier.kt
index 8cec1539d33..78f655f8f65 100644
--- a/compiler/frontend/src/org/jetbrains/kotlin/psi/addRemoveModifier.kt
+++ b/compiler/frontend/src/org/jetbrains/kotlin/psi/addRemoveModifier.kt
@@ -55,6 +55,8 @@ internal fun addAnnotationEntry(owner: JetModifierListOwner, annotationEntry: Je
 }
 
 internal fun addModifier(modifierList: JetModifierList, modifier: JetModifierKeywordToken, defaultVisibilityModifier: JetModifierKeywordToken) {
+    if (modifierList.hasModifier(modifier)) return
+
     val newModifier = JetPsiFactory(modifierList).createModifier(modifier)
     val modifierToReplace = MODIFIERS_TO_REPLACE[modifier]
             ?.map { modifierList.getModifier(it) }
diff --git a/idea/src/org/jetbrains/kotlin/idea/refactoring/pullUp/KotlinPullUpHelper.kt b/idea/src/org/jetbrains/kotlin/idea/refactoring/pullUp/KotlinPullUpHelper.kt
index dc7999af90e..a3fe38a4abd 100644
--- a/idea/src/org/jetbrains/kotlin/idea/refactoring/pullUp/KotlinPullUpHelper.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/refactoring/pullUp/KotlinPullUpHelper.kt
@@ -540,7 +540,7 @@ class KotlinPullUpHelper(
         if (member.hasModifier(JetTokens.ABSTRACT_KEYWORD)) {
             member.delete()
         }
-        else if (!member.hasModifier(JetTokens.OVERRIDE_KEYWORD)) {
+        else {
             member.addModifierWithSpace(JetTokens.OVERRIDE_KEYWORD)
         }
     }
diff --git a/idea/src/org/jetbrains/kotlin/idea/refactoring/pullUp/pullUpUtils.kt b/idea/src/org/jetbrains/kotlin/idea/refactoring/pullUp/pullUpUtils.kt
index a2ea11de072..4d7e99a570d 100644
--- a/idea/src/org/jetbrains/kotlin/idea/refactoring/pullUp/pullUpUtils.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/refactoring/pullUp/pullUpUtils.kt
@@ -71,6 +71,7 @@ fun JetNamedDeclaration.addAnnotationWithSpace(annotationEntry: JetAnnotationEnt
 }
 
 fun JetClass.makeAbstract() {
-    if (isInterface() || hasModifier(JetTokens.ABSTRACT_KEYWORD)) return
-    addModifierWithSpace(JetTokens.ABSTRACT_KEYWORD)
+    if (!isInterface()) {
+        addModifierWithSpace(JetTokens.ABSTRACT_KEYWORD)
+    }
 }
\ No newline at end of file