diff --git a/dom/src/base/nsJSEnvironment.cpp b/dom/src/base/nsJSEnvironment.cpp
index ba240ddd0ea..64ba62184f5 100644
--- a/dom/src/base/nsJSEnvironment.cpp
+++ b/dom/src/base/nsJSEnvironment.cpp
@@ -503,7 +503,8 @@ NS_ScriptErrorReporter(JSContext *cx,
                 // URIs. See bug 387476.
                 sameOrigin =
                   NS_SUCCEEDED(sSecurityManager->
-                               CheckSameOriginURI(errorURI, codebase, PR_TRUE));
+                               CheckSameOriginURI(errorURI, codebase,
+                                                  PR_FALSE));
               }
             }