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-rw-r--r--sys/src/libauth/auth_chuid.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/src/libauth/auth_chuid.c b/sys/src/libauth/auth_chuid.c
index 1bfbfff92..7ba0cfc6d 100644
--- a/sys/src/libauth/auth_chuid.c
+++ b/sys/src/libauth/auth_chuid.c
@@ -10,7 +10,7 @@ auth_chuid(AuthInfo *ai, char *ns)
{
int rv, fd;
- if(ai == nil || ai->cap == nil){
+ if(ai == nil || ai->cap == nil || ai->cap[0] == 0){
werrstr("no capability");
return -1;
}