diff --git a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsFragment.kt b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsFragment.kt
index d50fd0575..8993760d6 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsFragment.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsFragment.kt
@@ -33,6 +33,8 @@ class GradeDetailsFragment : BaseFragment(), GradeDetailsView, GradeView.GradeCh
     @Inject
     lateinit var gradeDetailsAdapter: FlexibleAdapter<AbstractFlexibleItem<*>>
 
+    private var gradeDetailsMenu: Menu? = null
+
     companion object {
         fun newInstance() = GradeDetailsFragment()
     }
@@ -69,6 +71,8 @@ class GradeDetailsFragment : BaseFragment(), GradeDetailsView, GradeView.GradeCh
 
     override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
         inflater.inflate(R.menu.action_menu_grade_details, menu)
+        gradeDetailsMenu = menu
+        presenter.updateMarkAsDoneButton()
     }
 
     override fun initView() {
@@ -165,6 +169,10 @@ class GradeDetailsFragment : BaseFragment(), GradeDetailsView, GradeView.GradeCh
         (parentFragment as? GradeFragment)?.onChildRefresh()
     }
 
+    override fun enableMarkAsDoneButton(enable: Boolean) {
+        gradeDetailsMenu?.findItem(R.id.gradeDetailsMenuRead)?.isEnabled = enable
+    }
+
     override fun onDestroyView() {
         super.onDestroyView()
         presenter.onDetachView()
diff --git a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsPresenter.kt b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsPresenter.kt
index 29911a541..96b556864 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsPresenter.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsPresenter.kt
@@ -1,5 +1,6 @@
 package io.github.wulkanowy.ui.modules.grade.details
 
+import android.widget.Toast
 import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
 import io.github.wulkanowy.data.db.entities.Grade
 import io.github.wulkanowy.data.repositories.grade.GradeRepository
@@ -26,6 +27,8 @@ class GradeDetailsPresenter @Inject constructor(
     private val analytics: FirebaseAnalyticsHelper
 ) : BasePresenter<GradeDetailsView>(errorHandler, studentRepository, schedulers) {
 
+    private var newGradesAmount: Int = 0
+
     private var currentSemesterId = 0
 
     override fun onAttachView(view: GradeDetailsView) {
@@ -52,6 +55,8 @@ class GradeDetailsPresenter @Inject constructor(
                             updateItem(header)
                         }
                     }
+                    newGradesAmount--
+                    updateMarkAsDoneButton()
                     updateGrade(item.grade)
                 }
             }
@@ -106,6 +111,10 @@ class GradeDetailsPresenter @Inject constructor(
         disposable.clear()
     }
 
+    fun updateMarkAsDoneButton() {
+        view?.enableMarkAsDoneButton(newGradesAmount > 0)
+    }
+
     private fun loadData(semesterId: Int, forceRefresh: Boolean) {
         Timber.i("Loading grade details data started")
         disposable.add(studentRepository.getCurrentStudent()
@@ -131,6 +140,8 @@ class GradeDetailsPresenter @Inject constructor(
             }
             .subscribe({
                 Timber.i("Loading grade details result: Success")
+                newGradesAmount  = it.sumBy { gradeDetailsHeader -> gradeDetailsHeader.newGrades }
+                updateMarkAsDoneButton()
                 view?.run {
                     showEmpty(it.isEmpty())
                     showContent(it.isNotEmpty())
diff --git a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsView.kt b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsView.kt
index 88b83bda9..fb806351c 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsView.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/grade/details/GradeDetailsView.kt
@@ -46,6 +46,8 @@ interface GradeDetailsView : BaseView {
 
     fun notifyParentRefresh()
 
+    fun enableMarkAsDoneButton(enable: Boolean)
+
     fun getGradeNumberString(number: Int): String
 
     fun getHeaderOfItem(item: AbstractFlexibleItem<*>): IExpandable<*, out IFlexible<*>>?
diff --git a/app/src/main/res/menu/action_menu_grade_details.xml b/app/src/main/res/menu/action_menu_grade_details.xml
index 6f8a1aea5..fbd28eece 100644
--- a/app/src/main/res/menu/action_menu_grade_details.xml
+++ b/app/src/main/res/menu/action_menu_grade_details.xml
@@ -3,6 +3,7 @@
     xmlns:app="http://schemas.android.com/apk/res-auto">
     <item
         android:id="@+id/gradeDetailsMenuRead"
+        android:enabled="false"
         android:orderInCategory="100"
         android:title="@string/grade_menu_read"
         app:iconTint="@color/mtrl_on_surface_emphasis_medium"