diff --git a/hscript/Interp.hx b/hscript/Interp.hx
index 62dde74..3d305e2 100644
--- a/hscript/Interp.hx
+++ b/hscript/Interp.hx
@@ -110,6 +110,7 @@ class Interp {
 		assignOp("<<=",function(v1,v2) return v1 << v2);
 		assignOp(">>=",function(v1,v2) return v1 >> v2);
 		assignOp(">>>=",function(v1,v2) return v1 >>> v2);
+		assignOp("??=",function(v1,v2) return v1 ?? v2);
 	}
 
 	function setVar( name : String, v : Dynamic ) {
diff --git a/hscript/Parser.hx b/hscript/Parser.hx
index 08e1d2e..3695ef8 100644
--- a/hscript/Parser.hx
+++ b/hscript/Parser.hx
@@ -118,7 +118,7 @@ class Parser {
 			["&&"],
 			["||"],
 			["??"],
-			["=","+=","-=","*=","/=","%=","<<=",">>=",">>>=","|=","&=","^=","=>"],
+			["=","+=","-=","*=","/=","%=","<<=",">>=",">>>=","??=","|=","&=","^=","=>"],
 			["->"],
 			["in","is"]
 		];
@@ -1570,8 +1570,12 @@ class Parser {
 				char = readChar();
 				if( char == ".".code )
 					return TQuestionDot;
-				if( char == "?".code )
+				if( char == "?".code ) {
+					char = readChar();
+					if ( char == "=".code )
+						return TOp("??=");
 					return TOp("??");
+				}
 				this.char = char;
 				return TQuestion;
 			case ":".code: return TDoubleDot;