diff --git a/test-v13/src/test/java/permissions/dispatcher/test_v13/Extensions.kt b/test-v13/src/test/java/permissions/dispatcher/test_v13/Extensions.kt
index 94fa4d2c..a9f2d28d 100644
--- a/test-v13/src/test/java/permissions/dispatcher/test_v13/Extensions.kt
+++ b/test-v13/src/test/java/permissions/dispatcher/test_v13/Extensions.kt
@@ -53,6 +53,10 @@ fun overwriteCustomManufacture(manufactureText: String = "Xiaomi") {
     manufacture.set(null, manufactureText)
 }
 
+fun clearCustomManufacture() {
+    overwriteCustomManufacture("")
+}
+
 fun overwriteCustomSdkInt(sdkInt: Int = 23) {
     val modifiersField = Field::class.java.getDeclaredField("modifiers")
     modifiersField.isAccessible = true
@@ -63,6 +67,10 @@ fun overwriteCustomSdkInt(sdkInt: Int = 23) {
     field.set(null, sdkInt)
 }
 
+fun clearCustomSdkInt() {
+    overwriteCustomSdkInt()
+}
+
 fun testForXiaomi() {
     overwriteCustomManufacture()
     overwriteCustomSdkInt()
diff --git a/test/src/test/java/permissions/dispatcher/test/Extensions.kt b/test/src/test/java/permissions/dispatcher/test/Extensions.kt
index 294f11dc..6e0270ce 100644
--- a/test/src/test/java/permissions/dispatcher/test/Extensions.kt
+++ b/test/src/test/java/permissions/dispatcher/test/Extensions.kt
@@ -80,6 +80,10 @@ fun overwriteCustomManufacture(manufactureText: String = "Xiaomi") {
     manufacture.set(null, manufactureText)
 }
 
+fun clearCustomManufacture() {
+    overwriteCustomManufacture("")
+}
+
 fun overwriteCustomSdkInt(sdkInt: Int = 23) {
     val modifiersField = Field::class.java.getDeclaredField("modifiers")
     modifiersField.isAccessible = true
@@ -90,6 +94,10 @@ fun overwriteCustomSdkInt(sdkInt: Int = 23) {
     field.set(null, sdkInt)
 }
 
+fun clearCustomSdkInt() {
+    overwriteCustomSdkInt()
+}
+
 fun testForXiaomi() {
     overwriteCustomManufacture()
     overwriteCustomSdkInt()