diff --git a/services/core/java/com/android/server/inputmethod/InputMethodDeviceConfigs.java b/services/core/java/com/android/server/inputmethod/InputMethodDeviceConfigs.java
index dc2799e8e4340..6cd2493cfdff6 100644
--- a/services/core/java/com/android/server/inputmethod/InputMethodDeviceConfigs.java
+++ b/services/core/java/com/android/server/inputmethod/InputMethodDeviceConfigs.java
@@ -21,6 +21,8 @@ import static android.provider.InputMethodManagerDeviceConfig.KEY_HIDE_IME_WHEN_
 import android.app.ActivityThread;
 import android.provider.DeviceConfig;
 
+import com.android.internal.annotations.VisibleForTesting;
+
 /**
  * Class for the device-level configuration related to the input method manager
  * platform features in {@link DeviceConfig}.
@@ -56,4 +58,9 @@ final class InputMethodDeviceConfigs {
     public boolean shouldHideImeWhenNoEditorFocus() {
         return mHideImeWhenNoEditorFocus;
     }
+
+    @VisibleForTesting
+    void destroy() {
+        DeviceConfig.removeOnPropertiesChangedListener(mDeviceConfigChangedListener);
+    }
 }
diff --git a/services/tests/InputMethodSystemServerTests/src/com/android/server/inputmethod/InputMethodManagerServiceTestBase.java b/services/tests/InputMethodSystemServerTests/src/com/android/server/inputmethod/InputMethodManagerServiceTestBase.java
index 9501b9604fa0f..7cd55f326366c 100644
--- a/services/tests/InputMethodSystemServerTests/src/com/android/server/inputmethod/InputMethodManagerServiceTestBase.java
+++ b/services/tests/InputMethodSystemServerTests/src/com/android/server/inputmethod/InputMethodManagerServiceTestBase.java
@@ -65,6 +65,7 @@ import com.android.server.wm.WindowManagerInternal;
 
 import org.junit.After;
 import org.junit.Before;
+import org.junit.BeforeClass;
 import org.mockito.Mock;
 import org.mockito.MockitoSession;
 import org.mockito.quality.Strictness;
@@ -121,6 +122,14 @@ public class InputMethodManagerServiceTestBase {
     protected InputMethodManagerService mInputMethodManagerService;
     protected ServiceThread mServiceThread;
 
+    @BeforeClass
+    public static void setupClass() {
+        // Make sure DeviceConfig's lazy-initialized ContentProvider gets
+        // a real instance before we stub out all system services below.
+        // TODO(b/272229177): remove dependency on real ContentProvider
+        new InputMethodDeviceConfigs().destroy();
+    }
+
     @Before
     public void setUp() throws RemoteException {
         mMockingSession =
@@ -231,6 +240,8 @@ public class InputMethodManagerServiceTestBase {
 
     @After
     public void tearDown() {
+        mInputMethodManagerService.mInputMethodDeviceConfigs.destroy();
+
         if (mServiceThread != null) {
             mServiceThread.quitSafely();
         }