diff --git a/include/dnsproxy.h b/include/dnsproxy.h
index 877321d..b193d22 100644
--- a/include/dnsproxy.h
+++ b/include/dnsproxy.h
@@ -3,13 +3,13 @@
 
 typedef struct {
     int port;
+    int cache;
     int verify; // bool value
     int parallel; // bool value
     int optimistic; // bool value
     char **bootstrap;
     char **fallback;
     char **primary;
-    char *cache;
 } dnsproxy;
 
 dnsproxy* dnsproxy_init(int port);
diff --git a/src/cleardns.c b/src/cleardns.c
index 6ed014d..b8c5dfc 100644
--- a/src/cleardns.c
+++ b/src/cleardns.c
@@ -45,10 +45,10 @@ int main(int argc, char *argv[]) { // ClearDNS server
     dnsproxy_add_fallback(domestic, "tls://223.6.6.6");
     dnsproxy_add_fallback(domestic, "tls://120.53.53.53");
 
-    domestic->verify = FALSE;
+//    domestic->verify = FALSE;
 //    domestic->parallel = FALSE;
-    domestic->optimistic = TRUE;
-//    domestic->cache = "0";
+//    domestic->optimistic = TRUE;
+    domestic->cache = 0;
 
     dnsproxy_dump("Domestic", domestic);
 
diff --git a/src/dnsproxy.c b/src/dnsproxy.c
index ab378ea..9d39ec7 100644
--- a/src/dnsproxy.c
+++ b/src/dnsproxy.c
@@ -16,7 +16,7 @@ dnsproxy* dnsproxy_init(int port) {
     info->bootstrap = string_list_init();
     info->fallback = string_list_init();
     info->primary = string_list_init();
-    info->cache = "4194304"; // 4MiB
+    info->cache = 4194304; // 4MiB
     return info;
 }
 
@@ -28,7 +28,7 @@ void dnsproxy_dump(char *caption, dnsproxy *info) {
     log_debug("%s bootstrap -> %s", caption, string_list_dump(info->bootstrap));
     log_debug("%s fallback -> %s", caption, string_list_dump(info->fallback));
     log_debug("%s primary -> %s", caption, string_list_dump(info->primary));
-    log_debug("%s cache -> %s", caption, info->cache);
+    log_debug("%s cache -> %d", caption, info->cache);
 }
 
 void dnsproxy_add_primary(dnsproxy *info, char *server) {
@@ -51,9 +51,9 @@ void dnsproxy_gen_config(dnsproxy *info) {
     if (info->parallel) {
         cJSON_AddTrueToObject(config, "all-servers");
     }
-    if (strcmp(info->cache, "0") != 0) {
+    if (info->cache) {
         cJSON_AddTrueToObject(config, "cache");
-        cJSON_AddStringToObject(config, "cache-size", info->cache);
+        cJSON_AddNumberToObject(config, "cache-size", info->cache);
     }
     if (info->optimistic) {
         cJSON_AddTrueToObject(config, "cache-optimistic");