diff --git a/js/src/jslock.h b/js/src/jslock.h
index 8c6a6c4..6772659 100644
--- a/js/src/jslock.h
+++ b/js/src/jslock.h
@@ -44,10 +44,10 @@
 #include "jspubtd.h"    /* for JSRuntime, etc. */

 #ifdef JS_THREADSAFE
-# include "pratom.h"
-# include "prlock.h"
-# include "prcvar.h"
-# include "prthread.h"
+# include <nspr/pratom.h>
+# include <nspr/prlock.h>
+# include <nspr/prcvar.h>
+# include <nspr/prthread.h>
 #endif

 JS_BEGIN_EXTERN_C
diff --git a/js/src/jstask.h b/js/src/jstask.h
index 30bc009..5f5bb6b 100644
--- a/js/src/jstask.h
+++ b/js/src/jstask.h
@@ -48,9 +48,9 @@ class JSBackgroundTask {

 #ifdef JS_THREADSAFE

-#include "prthread.h"
-#include "prlock.h"
-#include "prcvar.h"
+#include <nspr/prthread.h>
+#include <nspr/prlock.h>
+#include <nspr/prcvar.h>

 class JSBackgroundThread {
     PRThread*         thread;