diff --git a/src/ios/SQLitePlugin.h b/src/ios/SQLitePlugin.h
index cdd6b63..9d4e908 100755
--- a/src/ios/SQLitePlugin.h
+++ b/src/ios/SQLitePlugin.h
@@ -29,6 +29,8 @@ typedef int WebSQLError;
 
 @property (nonatomic, copy) NSMutableDictionary *openDBs;
 @property (nonatomic, copy) NSMutableDictionary *appDBPaths;
+@property (atomic, strong)  NSMutableArray *commandCache;
+@property (atomic)          BOOL processingCache;
 
 // Self-test
 -(void) echoStringValue: (CDVInvokedUrlCommand*)command;