diff --git a/jserror.c b/jserror.c
index 50ce982..5fa9c5a 100644
--- a/jserror.c
+++ b/jserror.c
@@ -61,7 +61,7 @@ static int jsB_ErrorX(js_State *J, js_Object *prototype)
 		js_defproperty(J, -2, "message", JS_DONTENUM);
 	}
 	if (jsB_stacktrace(J, 1))
-		js_defproperty(J, -2, "stackTrace", JS_DONTENUM);
+		js_defproperty(J, -2, "stack", JS_DONTENUM);
 	return 1;
 }
 
@@ -71,7 +71,7 @@ static void js_newerrorx(js_State *J, const char *message, js_Object *prototype)
 	js_pushstring(J, message);
 	js_setproperty(J, -2, "message");
 	if (jsB_stacktrace(J, 0))
-		js_setproperty(J, -2, "stackTrace");
+		js_setproperty(J, -2, "stack");
 }
 
 #define DERROR(name, Name) \
diff --git a/main.c b/main.c
index fb8c986..d7eae8a 100644
--- a/main.c
+++ b/main.c
@@ -225,7 +225,7 @@ static const char *stacktrace_js =
 	"Error.prototype.toString = function() {\n"
 	"var s = this.name;\n"
 	"if ('message' in this) s += ': ' + this.message;\n"
-	"if ('stackTrace' in this) s += this.stackTrace;\n"
+	"if ('stack' in this) s += this.stack;\n"
 	"return s;\n"
 	"};\n"
 ;
diff --git a/tools/test262-harness.js b/tools/test262-harness.js
index 1b7eab1..54ae9c4 100644
--- a/tools/test262-harness.js
+++ b/tools/test262-harness.js
@@ -127,16 +127,16 @@
 		var msg = !neg_str ? err : "[Mismatch @negative " + neg_str + "]" + "\n        " + err;
 
 		info += (result.runtime ? "[run]   " : "[load]  ") + msg;
-		if (err && err.stackTrace && (result.runtime || full_mode)) {
+		if (err && err.stack && (result.runtime || full_mode)) {
 			if (full_mode) {
-				info += err.stackTrace;
+				info += err.stack;
 			} else {
 				// trim the internal loader from the trace
-				var internal = err.stackTrace.indexOf("\n" + load("mujs_blahblah()").err.stackTrace.trim().split("\n")[1]);
+				var internal = err.stack.indexOf("\n" + load("mujs_blahblah()").err.stack.trim().split("\n")[1]);
 				if (internal >= 0)
-					info += err.stackTrace.substring(0, internal);
+					info += err.stack.substring(0, internal);
 				else
-					info += err.stackTrace;
+					info += err.stack;
 			}
 		}
 	} else {