diff --git a/selfdrive/ui/ui.cc b/selfdrive/ui/ui.cc
index 8240372dea..69053ab05e 100644
--- a/selfdrive/ui/ui.cc
+++ b/selfdrive/ui/ui.cc
@@ -16,8 +16,6 @@
 #include "ui.hpp"
 #include "paint.hpp"
 
-extern volatile sig_atomic_t do_exit;
-
 int write_param_float(float param, const char* param_name, bool persistent_param) {
   char s[16];
   int size = snprintf(s, sizeof(s), "%f", param);