diff --git a/app/src/main/java/com/keylesspalace/tusky/FiltersActivity.kt b/app/src/main/java/com/keylesspalace/tusky/FiltersActivity.kt
index 202c7780..851455d9 100644
--- a/app/src/main/java/com/keylesspalace/tusky/FiltersActivity.kt
+++ b/app/src/main/java/com/keylesspalace/tusky/FiltersActivity.kt
@@ -83,8 +83,8 @@ class FiltersActivity: BaseActivity() {
         }
     }
 
-    private fun createFilter(phrase: String) {
-        api.createFilter(phrase, listOf(context), false, true, "").enqueue(object: Callback<Filter> {
+    private fun createFilter(phrase: String, wholeWord: Boolean) {
+        api.createFilter(phrase, listOf(context), false, wholeWord, "").enqueue(object: Callback<Filter> {
             override fun onResponse(call: Call<Filter>, response: Response<Filter>) {
                 filters.add(response.body()!!)
                 refreshFilterDisplay()
@@ -102,11 +102,12 @@ class FiltersActivity: BaseActivity() {
                 .setTitle(R.string.filter_addition_dialog_title)
                 .setView(R.layout.dialog_filter)
                 .setPositiveButton(android.R.string.ok){ _, _ ->
-                    createFilter(dialog.phraseEditText.text.toString())
+                    createFilter(dialog.phraseEditText.text.toString(), dialog.phraseWholeWord.isChecked)
                 }
                 .setNeutralButton(android.R.string.cancel, null)
                 .create()
         dialog.show()
+        dialog.phraseWholeWord.isChecked = true
     }
 
     private fun setupEditDialogForItem(itemIndex: Int) {
@@ -116,7 +117,7 @@ class FiltersActivity: BaseActivity() {
                 .setPositiveButton(R.string.filter_dialog_update_button) { _, _ ->
                     val oldFilter = filters[itemIndex]
                     val newFilter = Filter(oldFilter.id, dialog.phraseEditText.text.toString(), oldFilter.context,
-                            oldFilter.expiresAt, oldFilter.irreversible, oldFilter.wholeWord)
+                            oldFilter.expiresAt, oldFilter.irreversible, dialog.phraseWholeWord.isChecked)
                     updateFilter(newFilter, itemIndex)
                 }
                 .setNegativeButton(R.string.filter_dialog_remove_button) { _, _ ->
@@ -127,7 +128,9 @@ class FiltersActivity: BaseActivity() {
         dialog.show()
 
         // Need to show the dialog before referencing any elements from its view
-        dialog.phraseEditText.setText(filters[itemIndex].phrase)
+        val filter = filters[itemIndex]
+        dialog.phraseEditText.setText(filter.phrase)
+        dialog.phraseWholeWord.isChecked = filter.wholeWord
     }
 
     private fun refreshFilterDisplay() {
diff --git a/app/src/main/res/layout/dialog_filter.xml b/app/src/main/res/layout/dialog_filter.xml
index 9c659cbc..09c6001d 100644
--- a/app/src/main/res/layout/dialog_filter.xml
+++ b/app/src/main/res/layout/dialog_filter.xml
@@ -15,4 +15,23 @@
         android:hint="@string/filter_add_description"
         app:layout_constraintTop_toTopOf="parent"
         />
+    <CheckBox
+        android:id="@+id/phraseWholeWord"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:paddingEnd="24dp"
+        android:paddingStart="24dp"
+        android:text="@string/filter_dialog_whole_word"
+        app:layout_constraintTop_toBottomOf="@id/phraseEditText"
+        app:layout_constraintLeft_toLeftOf="parent"
+        />
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:paddingEnd="8dp"
+        android:paddingStart="8dp"
+        app:layout_constraintTop_toBottomOf="@id/phraseWholeWord"
+        app:layout_constraintLeft_toLeftOf="parent"
+        android:text="@string/filter_dialog_whole_word_description"
+        />
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 7575ffb4..0f1e3856 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -323,6 +323,8 @@
     <string name="filter_edit_dialog_title">Edit filter</string>
     <string name="filter_dialog_remove_button">Remove</string>
     <string name="filter_dialog_update_button">Update</string>
+    <string name="filter_dialog_whole_word">Whole word</string>
+    <string name="filter_dialog_whole_word_description">When the keyword or phrase is alphanumeric only, it will only be applied if it matches the whole word</string>
     <string name="filter_add_description">Phrase to filter</string>
 
     <string name="add_account_name">Add Account</string>