diff --git a/Harpy/Harpy.m b/Harpy/Harpy.m
index 5e61de9..0e47bf8 100755
--- a/Harpy/Harpy.m
+++ b/Harpy/Harpy.m
@@ -249,9 +249,15 @@ - (BOOL)isAppStoreVersionNewer:(NSString *)currentAppStoreVersion {
 }
 
 - (void)appStoreVersionIsNewer:(NSString *)currentAppStoreVersion {
-    [self localizeAlertStringsForCurrentAppStoreVersion:currentAppStoreVersion];
-    [self alertTypeForVersion:currentAppStoreVersion];
-    [self showAlertIfCurrentAppStoreVersionNotSkipped:currentAppStoreVersion];
+     _appID = _appData[@"results"][0][@"trackId"];
+
+    if (_appID == nil) {
+        [self printDebugMessage:@"appID is nil, which means to the trackId key is missing from the JSON results that Apple returned for your bundleID. If a version of your app is in the store and you are seeing this message, please open up an issue http://github.com/ArtSabintsev/Harpy and provide as much detail about your app as you can. Thanks!"];
+    } else {
+        [self localizeAlertStringsForCurrentAppStoreVersion:currentAppStoreVersion];
+        [self alertTypeForVersion:currentAppStoreVersion];
+        [self showAlertIfCurrentAppStoreVersionNotSkipped:currentAppStoreVersion];
+    }
 }
 
 - (void)launchAppStore {