diff --git a/mozilla/modules/security/freenav/secstubn.h b/mozilla/modules/security/freenav/secstubn.h
index 9246f8db261..3ab0e683eaf 100644
--- a/mozilla/modules/security/freenav/secstubn.h
+++ b/mozilla/modules/security/freenav/secstubn.h
@@ -21,6 +21,7 @@
 #include "ntypes.h"
 #include "net.h"
 
+typedef struct CERTCertificateStr CERTCertificate;
 typedef struct _digests DIGESTS;
 typedef struct _zig ZIG;
 typedef struct _zigcontext ZIG_Context;