1 files changed, 1 insertions, 1 deletions

diff --git a/src/firejail/seccomp.c b/src/firejail/seccomp.c
index 8314a6bc9..7cbd79d6b 100644
--- a/src/firejail/seccomp.c
+++ b/src/firejail/seccomp.c
@@ -41,7 +41,7 @@ char *seccomp_check_list(const char *str) {
         const char *ptr1 = str;
         char *ptr2 = rv;
         while (*ptr1 != '\0') {
-                if (isalnum(*ptr1) || *ptr1 == '_' || *ptr1 == ',' || *ptr1 == ':' || *ptr1 == '@')
+                if (isalnum(*ptr1) || *ptr1 == '_' || *ptr1 == ',' || *ptr1 == ':' || *ptr1 == '@' || *ptr1 == '-')
                         *ptr2++ = *ptr1++;
                 else {
                         fprintf(stderr, "Error: invalid syscall list\n");