diff --git a/components/esp_hal_ana_conv/esp32s31/include/hal/adc_ll.h b/components/esp_hal_ana_conv/esp32s31/include/hal/adc_ll.h
index 5041569ab17..941cf558109 100644
--- a/components/esp_hal_ana_conv/esp32s31/include/hal/adc_ll.h
+++ b/components/esp_hal_ana_conv/esp32s31/include/hal/adc_ll.h
@@ -8,6 +8,7 @@
 #include <stdbool.h>
 
 #include "soc/adc_struct.h"
+#include "soc/adc_reg.h"
 #include "soc/clk_tree_defs.h"
 #include "soc/lp_peri_clkrst_struct.h"
 #include "hal/misc.h"