diff --git a/build_defs/cgo.build_defs b/build_defs/cgo.build_defs
index 1676732b..6edc7194 100644
--- a/build_defs/cgo.build_defs
+++ b/build_defs/cgo.build_defs
@@ -2,7 +2,7 @@ subinclude("///go//build_defs:go", "///cc//build_defs:c")
 
 def cgo_library(name:str, srcs:list=[], resources:list=None, go_srcs:list=[], c_srcs:list=[], hdrs:list=[],
                 package:str=None, compiler_flags:list&cflags=[], linker_flags:list&ldflags=[], pkg_config:list=[],
-                subdir:str='', deps:list=[], visibility:list=None, test_only:bool&testonly=False, import_path:str=''):
+                subdir:str='', deps:list=[], visibility:list=None, test_only:bool&testonly=False, _module:str='', import_path:str=''):
     """Generates a Go library which can be reused by other rules.
 
     Note that by its nature this is something of a hybrid of Go and C rules. It can depend