1 files changed, 2 insertions, 2 deletions

diff --git a/src/firejail/join.c b/src/firejail/join.c
index 50ef58f4b..f52df7f04 100644
--- a/src/firejail/join.c
+++ b/src/firejail/join.c
@@ -413,8 +413,8 @@ void join(pid_t pid, int argc, char **argv, int index) {
 
                 // set nonewprivs
                 if (arg_nonewprivs == 1) {      // not available for uid 0
-                        prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
-                        if (arg_debug)
+                        int rv = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+                        if (arg_debug && rv == 0)
                                 printf("NO_NEW_PRIVS set\n");
                 }