1 files changed, 1 insertions, 0 deletions

diff --git a/src/firejail/netfilter.c b/src/firejail/netfilter.c
index 2ed09434a..4a5499699 100644
--- a/src/firejail/netfilter.c
+++ b/src/firejail/netfilter.c
@@ -44,6 +44,7 @@ static char *client_filter =
 "COMMIT\n";
 
 void check_netfilter_file(const char *fname) {
+        EUID_ASSERT();
         invalid_filename(fname);
         
         if (is_dir(fname) || is_link(fname) || strstr(fname, "..")) {