diff --git a/mozilla/sun-java/stubs/include/jri_md.h b/mozilla/sun-java/stubs/include/jri_md.h
index fb7358c2f41..8172a650ad7 100644
--- a/mozilla/sun-java/stubs/include/jri_md.h
+++ b/mozilla/sun-java/stubs/include/jri_md.h
@@ -151,7 +151,11 @@ typedef juint			jsize;
 #endif
 
 /* moved from jni.h -- Sun's new jni.h doesn't have this anymore */
+#ifdef __cplusplus
+typedef class _jobject *jref;
+#else
 typedef struct _jobject *jref;
+#endif
 
 typedef unsigned char	jbool;
 typedef char			jbyte;