diff --git a/app_installer.c b/app_installer.c
index 971ef77..b901571 100644
--- a/app_installer.c
+++ b/app_installer.c
@@ -51,7 +51,7 @@ static int write_file(const char *p, const uint8_t *d, size_t s) {
     return w == s ? 0 : -1;
 }
 
-void smplus_install_if_needed(int icon_always_front) {
+void smplus_install_if_needed(int icon_always_front, int http_port) {
     /* In once-only mode, skip if marker exists */
     if(!icon_always_front) {
         FILE *m = fopen(MARKER, "r");
@@ -70,6 +70,16 @@ void smplus_install_if_needed(int icon_always_front) {
     mkdir(sdir, 0755);
 
     if (write_file(par, sm_param_json, sm_param_json_size) != 0) goto done;
+    /* patch deeplink port in the written param.json */
+    {FILE *pf=fopen(par,"r+");if(pf){
+        char buf[1024]={0};fread(buf,1,sizeof(buf)-1,pf);
+        char old_url[64],new_url[64];
+        snprintf(old_url,sizeof(old_url),"http://127.0.0.1:7777/");
+        snprintf(new_url,sizeof(new_url),"http://127.0.0.1:%d/",http_port>1024?http_port:7777);
+        char *pos=strstr(buf,old_url);
+        if(pos&&strlen(old_url)==strlen(new_url)){memcpy(pos,new_url,strlen(new_url));
+            fseek(pf,0,SEEK_SET);fwrite(buf,1,strlen(buf),pf);}
+        fclose(pf);}}
     if (write_file(ico, sm_icon0_png,  sm_icon0_png_size)  != 0) goto done;
 
     install_title_dir(TITLE_ID, APP_ROOT "/");
diff --git a/app_installer.h b/app_installer.h
index 3f41eff..cf25723 100644
--- a/app_installer.h
+++ b/app_installer.h
@@ -1,4 +1,4 @@
 #ifndef APP_INSTALLER_H
 #define APP_INSTALLER_H
-void smplus_install_if_needed(int icon_always_front);
+void smplus_install_if_needed(int icon_always_front, int http_port);
 #endif
diff --git a/assets-app/param.json b/assets-app/param.json
index 434f5eb..67152b8 100644
--- a/assets-app/param.json
+++ b/assets-app/param.json
@@ -1,7 +1,7 @@
 {
   "applicationCategoryType": 0,
   "titleId": "SMPL00001",
-  "deeplinkUri": "http://127.0.0.1:7070/",
+  "deeplinkUri": "http://127.0.0.1:7777/",
   "localizedParameters": {
     "defaultLanguage": "de-DE",
     "de-DE": {
diff --git a/main.c b/main.c
index 71a7d3a..95b465f 100644
--- a/main.c
+++ b/main.c
@@ -3265,7 +3265,7 @@ int payload_main(void) {
     { SMPrefs _p; read_prefs(&_p); /* read icon pref once at start */
     while(1){
         mg_mgr_poll(&mgr,1000); usleep(100000);
-        if(++polls==3) smplus_install_if_needed(_p.icon_always_front);
+        if(++polls==3) smplus_install_if_needed(_p.icon_always_front, _p.http_port>1024?_p.http_port:7777);
         /* send pending ELF after browser got its {ok:true} response */
         if(smg_pending_elf[0]){ send_elf_to_elfldr(smg_pending_elf); smg_pending_elf[0]=0; }
         if(polls==6 && !as_done){ /* ~6s after start — give elfldr time to initialize */