diff --git a/services/core/java/com/android/server/webkit/SystemImpl.java b/services/core/java/com/android/server/webkit/SystemImpl.java
index a5d68dabbdeb8..876bb20d25736 100644
--- a/services/core/java/com/android/server/webkit/SystemImpl.java
+++ b/services/core/java/com/android/server/webkit/SystemImpl.java
@@ -68,6 +68,7 @@ public class SystemImpl implements SystemInterface {
     public WebViewProviderInfo[] getWebViewPackages() {
         int numFallbackPackages = 0;
         int numAvailableByDefaultPackages = 0;
+        int numAvByDefaultAndNotFallback = 0;
         XmlResourceParser parser = null;
         List<WebViewProviderInfo> webViewProviders = new ArrayList<WebViewProviderInfo>();
         try {
@@ -111,6 +112,9 @@ public class SystemImpl implements SystemInterface {
                     }
                     if (currentProvider.availableByDefault) {
                         numAvailableByDefaultPackages++;
+                        if (!currentProvider.isFallback) {
+                            numAvByDefaultAndNotFallback++;
+                        }
                     }
                     webViewProviders.add(currentProvider);
                 }
@@ -127,6 +131,10 @@ public class SystemImpl implements SystemInterface {
             throw new AndroidRuntimeException("There must be at least one WebView package "
                     + "that is available by default");
         }
+        if (numAvByDefaultAndNotFallback == 0) {
+            throw new AndroidRuntimeException("There must be at least one WebView package "
+                    + "that is available by default and not a fallback");
+        }
         return webViewProviders.toArray(new WebViewProviderInfo[webViewProviders.size()]);
     }