diff --git a/lib_fiber/c/src/hook/dns_init.c b/lib_fiber/c/src/hook/dns_init.c
index 9839d229e..9d58c2f60 100644
--- a/lib_fiber/c/src/hook/dns_init.c
+++ b/lib_fiber/c/src/hook/dns_init.c
@@ -9,7 +9,7 @@ struct dns_resolv_conf *var_dns_conf = NULL;
 struct dns_hosts *var_dns_hosts      = NULL;
 struct dns_hints *var_dns_hints      = NULL;
 
-void dns_set_read_wait(int timeout)
+void fiber_dns_set_read_wait(int timeout)
 {
 	set_read_timeout(timeout);
 }
@@ -32,7 +32,7 @@ static void dns_on_exit(void)
 	}
 }
 
-void dns_init(void)
+void fiber_dns_init(void)
 {
 #ifdef SYS_WIN
 	static pthread_mutex_t __lock;
diff --git a/lib_fiber/c/src/hook/getaddrinfo.c b/lib_fiber/c/src/hook/getaddrinfo.c
index a4b33590e..c8a4d6c8f 100644
--- a/lib_fiber/c/src/hook/getaddrinfo.c
+++ b/lib_fiber/c/src/hook/getaddrinfo.c
@@ -149,7 +149,7 @@ int acl_fiber_getaddrinfo(const char *node, const char *service,
 	}
 
 	if (var_dns_conf == NULL || var_dns_hosts == NULL) {
-		dns_init();
+		fiber_dns_init();
 	}
 
 	*res = NULL;
diff --git a/lib_fiber/c/src/hook/gethostbyname.c b/lib_fiber/c/src/hook/gethostbyname.c
index d03401840..250ca1e70 100644
--- a/lib_fiber/c/src/hook/gethostbyname.c
+++ b/lib_fiber/c/src/hook/gethostbyname.c
@@ -170,7 +170,7 @@ int acl_fiber_gethostbyname_r(const char *name, struct hostent *ent,
 	}
 
 	if (var_dns_conf == NULL || var_dns_hosts == NULL) {
-		dns_init();
+		fiber_dns_init();
 	}
 
 	memset(ent, 0, sizeof(struct hostent));
diff --git a/lib_fiber/c/src/hook/hook.h b/lib_fiber/c/src/hook/hook.h
index a1d051e01..aa957f2f4 100644
--- a/lib_fiber/c/src/hook/hook.h
+++ b/lib_fiber/c/src/hook/hook.h
@@ -5,7 +5,7 @@ extern struct dns_resolv_conf *var_dns_conf;
 extern struct dns_hosts *var_dns_hosts;
 extern struct dns_hints *var_dns_hints;
 
-extern void dns_set_read_wait(int timeout);
-extern void dns_init(void);
+extern void fiber_dns_set_read_wait(int timeout);
+extern void fiber_dns_init(void);
 
 #endif