diff --git a/judge/judger/client.py b/judge/judger/client.py
index ae5bf686..a5a1f471 100644
--- a/judge/judger/client.py
+++ b/judge/judger/client.py
@@ -62,8 +62,7 @@ class JudgeClient(object):
                   " --max-real-time " + str(self._max_real_time / 1000.0 * 2) + \
                   " --max-memory " + str(self._max_memory * 1000 * 1000) + \
                   " --network false" + \
-                  " --syscalls '!execve:k,flock:k,ptrace:k,sync:k,fdatasync:k,fsync:k,msync,sync_file_range:k,syncfs:k" \
-                  ",unshare:k,setns:k,clone[a&268435456==268435456]:k,query_module:k,sysinfo:k,syslog:k,sysfs:k'" + \
+                  " --syscalls '" + self._language["syscalls"] + "'" + \
                   " --max-nprocess 20" + \
                   " --uid " + str(lrun_uid) + \
                   " --gid " + str(lrun_gid)
diff --git a/judge/judger/language.py b/judge/judger/language.py
index 01d38833..c7a14eb4 100644
--- a/judge/judger/language.py
+++ b/judge/judger/language.py
@@ -6,6 +6,7 @@ languages = {
         "name": "c",
         "src_name": "main.c",
         "code": 1,
+        "syscalls": "!execve:k,flock:k,ptrace:k,sync:k,fdatasync:k,fsync:k,msync,sync_file_range:k,syncfs:k,unshare:k,setns:k,clone:k,query_module:k,sysinfo:k,syslog:k,sysfs:k",
         "compile_command": "gcc -DONLINE_JUDGE -O2 -w -std=c99 {src_path} -lm -o {exe_path}main",
         "execute_command": "{exe_path}main"
     },
@@ -13,6 +14,7 @@ languages = {
         "name": "cpp",
         "src_name": "main.cpp",
         "code": 2,
+        "syscalls": "!execve:k,flock:k,ptrace:k,sync:k,fdatasync:k,fsync:k,msync,sync_file_range:k,syncfs:k,unshare:k,setns:k,clone:k,query_module:k,sysinfo:k,syslog:k,sysfs:k",
         "compile_command": "g++ -DONLINE_JUDGE -O2 -w -std=c++11 {src_path} -lm -o {exe_path}main",
         "execute_command": "{exe_path}main"
     },
@@ -20,6 +22,7 @@ languages = {
         "name": "java",
         "src_name": "Main.java",
         "code": 3,
+        "syscalls": "!execve:k,flock:k,ptrace:k,sync:k,fdatasync:k,fsync:k,msync,sync_file_range:k,syncfs:k,unshare:k,setns:k,clone[a&268435456==268435456]:k,query_module:k,sysinfo:k,syslog:k,sysfs:k",
         "compile_command": "javac {src_path} -d {exe_path}",
         "execute_command": "java -cp {exe_path} -Djava.security.manager -Djava.security.policy==policy Main"
     }