diff --git a/components/ulp/include/esp32/ulp.h b/components/ulp/include/esp32/ulp.h
index 64bfff8c45..ed1e6c90fe 100644
--- a/components/ulp/include/esp32/ulp.h
+++ b/components/ulp/include/esp32/ulp.h
@@ -17,6 +17,7 @@
 #include <stddef.h>
 #include <stdlib.h>
 #include "esp_err.h"
+#include "soc/soc.h"
 
 #ifdef __cplusplus
 extern "C" {