diff --git a/implementation/src/test/java/info/nightscout/implementation/pump/DetailedBolusInfoStorageTest.kt b/implementation/src/test/java/info/nightscout/implementation/pump/DetailedBolusInfoStorageTest.kt
index 91d38733d8..86d9a97e9d 100644
--- a/implementation/src/test/java/info/nightscout/implementation/pump/DetailedBolusInfoStorageTest.kt
+++ b/implementation/src/test/java/info/nightscout/implementation/pump/DetailedBolusInfoStorageTest.kt
@@ -1,6 +1,7 @@
 package info.nightscout.implementation.pump
 
 import info.nightscout.androidaps.TestBase
+import info.nightscout.implementation.R
 import info.nightscout.interfaces.pump.DetailedBolusInfo
 import info.nightscout.shared.interfaces.ResourceHelper
 import info.nightscout.shared.sharedPreferences.SP
@@ -9,6 +10,7 @@ import org.junit.Assert.assertNull
 import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
 import org.mockito.Mock
+import org.mockito.Mockito
 
 class DetailedBolusInfoStorageTest : TestBase() {
 
@@ -32,6 +34,7 @@ class DetailedBolusInfoStorageTest : TestBase() {
 
     @BeforeEach
     fun prepare() {
+        Mockito.`when`(sp.getString(rh.gs(R.string.key_bolus_storage), "")).thenReturn("")
         detailedBolusInfoStorage = DetailedBolusInfoStorageImpl(aapsLogger, sp, rh)
     }