diff --git a/src/child.c b/src/child.c
index 64de70b..1451e42 100644
--- a/src/child.c
+++ b/src/child.c
@@ -36,7 +36,7 @@ void close_file(FILE *fp, ...) {
 }
 
 
-int child_process(FILE *log_fp, struct config *_config) {
+void child_process(FILE *log_fp, struct config *_config) {
     FILE *input_file = NULL, *output_file = NULL, *error_file = NULL;
 
     if (_config->max_stack != UNLIMITED) {
@@ -159,5 +159,4 @@ int child_process(FILE *log_fp, struct config *_config) {
 
     execve(_config->exe_path, _config->args, _config->env);
     CHILD_ERROR_EXIT(EXECVE_FAILED);
-    return 0;
 }
diff --git a/src/child.h b/src/child.h
index e073078..c01e6e7 100644
--- a/src/child.h
+++ b/src/child.h
@@ -9,10 +9,10 @@
         LOG_FATAL(log_fp, "Error: System errno: %s; Internal errno: "#error_code, strerror(errno)); \
         close_file(input_file, output_file, error_file);  \
         raise(SIGUSR1);  \
-        return -1; \
+        exit(EXIT_FAILURE); \
     }
 
 
-int child_process(FILE *log_fp, struct config *_config);
+void child_process(FILE *log_fp, struct config *_config);
 
 #endif //JUDGER_CHILD_H