diff --git a/src/com/android/dialer/calllog/ContactInfoHelper.java b/src/com/android/dialer/calllog/ContactInfoHelper.java
index 84ce27e..dfe7aed 100644
--- a/src/com/android/dialer/calllog/ContactInfoHelper.java
+++ b/src/com/android/dialer/calllog/ContactInfoHelper.java
@@ -283,6 +283,7 @@
      *        {@link #mCachedNumberLookupService}.
      */
     public boolean isBusiness(int sourceType) {
-        return mCachedNumberLookupService.isBusiness(sourceType);
+        return mCachedNumberLookupService != null
+                && mCachedNumberLookupService.isBusiness(sourceType);
     }
 }