diff --git a/src/com/android/settings/accessibility/AccessibilityFooterPreferenceController.java b/src/com/android/settings/accessibility/AccessibilityFooterPreferenceController.java
index 08e5906105e..c22b11e725a 100644
--- a/src/com/android/settings/accessibility/AccessibilityFooterPreferenceController.java
+++ b/src/com/android/settings/accessibility/AccessibilityFooterPreferenceController.java
@@ -104,11 +104,17 @@ public class AccessibilityFooterPreferenceController extends BasePreferenceContr
         sb.append(getIntroductionTitle()).append("\n\n").append(footerPreference.getTitle());
         footerPreference.setContentDescription(sb);
 
+        final Intent helpIntent;
         if (getHelpResource() != 0) {
+            // Returns may be null if content is wrong or empty.
+            helpIntent = HelpUtils.getHelpIntent(mContext, mContext.getString(getHelpResource()),
+                    mContext.getClass().getName());
+        } else {
+            helpIntent = null;
+        }
+
+        if (helpIntent != null) {
             footerPreference.setLearnMoreAction(view -> {
-                final Intent helpIntent = HelpUtils.getHelpIntent(
-                        mContext, mContext.getString(getHelpResource()),
-                        mContext.getClass().getName());
                 view.startActivityForResult(helpIntent, 0);
             });
             footerPreference.setLearnMoreContentDescription(getLearnMoreContentDescription());
diff --git a/tests/robotests/src/com/android/settings/accessibility/AccessibilityFooterPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/accessibility/AccessibilityFooterPreferenceControllerTest.java
index d6c8d996a16..cc8520b9745 100644
--- a/tests/robotests/src/com/android/settings/accessibility/AccessibilityFooterPreferenceControllerTest.java
+++ b/tests/robotests/src/com/android/settings/accessibility/AccessibilityFooterPreferenceControllerTest.java
@@ -109,16 +109,16 @@ public class AccessibilityFooterPreferenceControllerTest {
     }
 
     @Test
-    public void onBindViewHolder_setupHelpLink_setCorrectHelpLinkAndContentDescription() {
-        mController.setupHelpLink(TEST_HELP_ID, TEST_CONTENT_DESCRIPTION);
+    public void onBindViewHolder_setHelpResource_emptyString_notVisible() {
+        mController.setupHelpLink(R.string.help_url_timeout, TEST_CONTENT_DESCRIPTION);
         mController.displayPreference(mScreen);
 
         mPreference.onBindViewHolder(mPreferenceViewHolder);
 
         final TextView learnMoreView = (TextView) mPreferenceViewHolder
                 .findViewById(com.android.settingslib.R.id.settingslib_learn_more);
-        assertThat(learnMoreView.getContentDescription().toString())
-                .contains(TEST_CONTENT_DESCRIPTION);
-        assertThat(mPreference.isLinkEnabled()).isTrue();
+        assertThat(learnMoreView.getContentDescription()).isNull();
+        assertThat(learnMoreView.getVisibility()).isEqualTo(View.GONE);
+        assertThat(mPreference.isLinkEnabled()).isFalse();
     }
 }