1 files changed, 1 insertions, 0 deletions

diff --git a/src/firejail/sbox.c b/src/firejail/sbox.c
index 99f11a246..cf3d3aeed 100644
--- a/src/firejail/sbox.c
+++ b/src/firejail/sbox.c
@@ -48,6 +48,7 @@ static int sbox_do_exec_v(unsigned filtermask, char * const arg[]) {
         if (cfg.seccomp_error_action)
                 if (asprintf(&new_environment[env_index++], "FIREJAIL_SECCOMP_ERROR_ACTION=%s", cfg.seccomp_error_action) == -1)
                         errExit("asprintf");
+        new_environment[env_index++] = "FIREJAIL_PLUGIN="; // always set
 
         if (filtermask & SBOX_STDIN_FROM_FILE) {
                 int fd;