diff --git a/src/lxc/seccomp.c b/src/lxc/seccomp.c
index e32c23b43..4ea3c2a7c 100644
--- a/src/lxc/seccomp.c
+++ b/src/lxc/seccomp.c
@@ -184,14 +184,14 @@ static enum scmp_compare parse_v2_rule_op(char *s)
 
 /*
  * This function is used to parse the args string into the structure.
- * args string format:[index,value,op,valueTwo] or [index,value,op]
+ * args string format:[index,value,op,mask] or [index,value,op]
  * index: the index for syscall arguments (type uint)
  * value: the value for syscall arguments (type uint64)
  * op: the operator for syscall arguments(string),
 	 a valid list of constants as of libseccomp v2.3.2 is
 	 SCMP_CMP_NE,SCMP_CMP_LE,SCMP_CMP_LE, SCMP_CMP_EQ, SCMP_CMP_GE,
 	 SCMP_CMP_GT, SCMP_CMP_MASKED_EQ, or !=,<=,==,>=,>,&=
- * valueTwo: the value for syscall arguments only used for mask eq (type uint64, optional)
+ * mask: the mask to apply on "value" for SCMP_CMP_MASKED_EQ (type uint64, optional)
  * Returns 0 on success, < 0 otherwise.
  */
 static int get_seccomp_arg_value(char *key, struct seccomp_v2_rule_args *rule_args)