diff --git a/mozilla/modules/plugin/base/src/nsJSNPRuntime.cpp b/mozilla/modules/plugin/base/src/nsJSNPRuntime.cpp
index 7219f11c76a..0c3a3ec821b 100644
--- a/mozilla/modules/plugin/base/src/nsJSNPRuntime.cpp
+++ b/mozilla/modules/plugin/base/src/nsJSNPRuntime.cpp
@@ -1229,7 +1229,7 @@ NPObjWrapper_newEnumerate(JSContext *cx, JSObject *obj, JSIterateOp enum_op,
 {
   NPObject *npobj = GetNPObject(cx, obj);
   NPIdentifier *enum_value;
-  PRUint32 length;
+  uint32_t length;
   NPObjectEnumerateState *state;
 
   if (!npobj || !npobj->_class) {