diff --git a/components/hal/esp32c6/modem_clock_hal.c b/components/hal/esp32c6/modem_clock_hal.c
index afbc5d0ecd..ed242febec 100644
--- a/components/hal/esp32c6/modem_clock_hal.c
+++ b/components/hal/esp32c6/modem_clock_hal.c
@@ -19,7 +19,7 @@ typedef enum {
     MODEM_CLOCK_EXT32K_CODE  = 2
 } modem_clock_32k_clk_src_code_t;
 
-void modem_clock_hal_set_clock_domain_icg_bitmap(modem_clock_hal_context_t *hal, modem_clock_domain_t domain, uint32_t bitmap)
+void IRAM_ATTR modem_clock_hal_set_clock_domain_icg_bitmap(modem_clock_hal_context_t *hal, modem_clock_domain_t domain, uint32_t bitmap)
 {
     HAL_ASSERT(domain < MODEM_CLOCK_DOMAIN_MAX);
     switch (domain)