1 files changed, 2 insertions, 1 deletions

diff --git a/src/firejail/sbox.c b/src/firejail/sbox.c
index a92d62940..a2aaa86eb 100644
--- a/src/firejail/sbox.c
+++ b/src/firejail/sbox.c
@@ -263,6 +263,7 @@ int sbox_run(unsigned filtermask, int num, ...) {
 
 int sbox_run_v(unsigned filtermask, char * const arg[]) {
         EUID_ROOT();
+        assert(arg);
 
         if (arg_debug) {
                 printf("sbox run: ");
@@ -288,7 +289,7 @@ int sbox_run_v(unsigned filtermask, char * const arg[]) {
         if (waitpid(child, &status, 0) == -1 ) {
                 errExit("waitpid");
         }
-        if (WIFEXITED(status) && status != 0) {
+        if (WIFEXITED(status) && WEXITSTATUS(status) != 0) {
                 fprintf(stderr, "Error: failed to run %s\n", arg[0]);
                 exit(1);
         }