diff --git a/input/JavaScriptLexer.g4 b/input/JavaScriptLexer.g4
index f292e5a..fc3fb56 100644
--- a/input/JavaScriptLexer.g4
+++ b/input/JavaScriptLexer.g4
@@ -168,6 +168,7 @@ Import:                         'import';
 Contract:						'contract';
 Module:							'module';
 Oracle:                         'oracle';
+DoipModule:                     'doipmodule';
 /// The following tokens are also considered to be FutureReservedWords 
 /// when parsing strict mode
 
diff --git a/input/YJSParser.g4 b/input/YJSParser.g4
index bee29e2..2b16e10 100644
--- a/input/YJSParser.g4
+++ b/input/YJSParser.g4
@@ -38,7 +38,7 @@ program
     ;
     
 contractDeclar
-	: annotations? (Contract|Module|Oracle) Identifier  '{' clzOrFunctionDeclaration+ '}'
+	: annotations? (Contract|Module|Oracle|DoipModule) Identifier  '{' clzOrFunctionDeclaration+ '}'
 	;
 
 annotations