diff --git a/src/reading-writing-registers/esp32-c3-register-interface.h b/src/reading-writing-registers/esp32-c3-register-interface.h
index d012dda1ad16c9a33c1d34ba5f70b6f6ff28873a..6fb3181cea10e3d5c7d14a12e54a981b763f2a7d 100644
--- a/src/reading-writing-registers/esp32-c3-register-interface.h
+++ b/src/reading-writing-registers/esp32-c3-register-interface.h
@@ -3,7 +3,7 @@
 
 #define C3_UART_CONTROLLER_0_BASE ((uint32_t)0x60000000)
 #define C3_UART_CONTROLLER_1_BASE ((uint32_t)0x60010000)
-#define C3_UART_CONTROLLER_SELECT(base_select) ((volatile uint32_t *)((base_select == 1) ? C3_UART_CONTROLLER_1_BASE : C3_UART_CONTROLLER_0_BASE))
+#define C3_UART_CONTROLLER_SELECT(base_select) ((uint32_t)((base_select == 1) ? C3_UART_CONTROLLER_1_BASE : C3_UART_CONTROLLER_0_BASE))
 
 #define C3_UART_CLK_CONF_REG(base_select) ((volatile uint32_t *)(C3_UART_CONTROLLER_SELECT((base_select)) + 0x0078))
 // UART_RST_CORE is on 23