diff --git a/directory/c-sdk/build.mk b/directory/c-sdk/build.mk
index 3f0335ca699..b49c70fb1aa 100644
--- a/directory/c-sdk/build.mk
+++ b/directory/c-sdk/build.mk
@@ -45,7 +45,7 @@ COMPVERSIONDIR = $(DEPTH)/directory/c-sdk
 endif
 
 DEFAULT_VENDOR_NAME=mozilla.org
-DEFAULT_VENDOR_VERSION=515
+DEFAULT_VENDOR_VERSION=516
 
 ifndef VENDOR_NAME
 VENDOR_NAME	= $(DEFAULT_VENDOR_NAME)