1 files changed, 1 insertions, 1 deletions

diff --git a/src/firejail/seccomp.c b/src/firejail/seccomp.c
index 62d2e037e..609ebb7be 100644
--- a/src/firejail/seccomp.c
+++ b/src/firejail/seccomp.c
@@ -49,7 +49,7 @@ char *seccomp_check_list(const char *str) {
         char *ptr2 = rv;
         while (*ptr1 != '\0') {
         if (isalnum(*ptr1) || *ptr1 == '_' || *ptr1 == ',' || *ptr1 == ':'
-                                   || *ptr1 == '@' || *ptr1 == '-' || *ptr1 == '$' || *ptr1 = '!')
+                                   || *ptr1 == '@' || *ptr1 == '-' || *ptr1 == '$' || *ptr1 == '!')
                         *ptr2++ = *ptr1++;
                 else {
                         fprintf(stderr, "Error: invalid syscall list entry %s\n", str);