diff --git a/esphome/core/lwip_fast_select.c b/esphome/core/lwip_fast_select.c
index 63a58b71e6b..a3cc6ab8fe1 100644
--- a/esphome/core/lwip_fast_select.c
+++ b/esphome/core/lwip_fast_select.c
@@ -246,7 +246,7 @@ void IRAM_ATTR esphome_lwip_wake_main_loop_from_isr(int *px_higher_priority_task
 // Read the ARM Cortex-M IPSR register directly via inline asm.
 // Avoids depending on CMSIS __get_IPSR() which may not be declared/available
 // in all LibreTiny chip family toolchains (e.g. beken-72xx).
-static inline uint32_t esphome_get_ipsr(void) {
+static inline IRAM_ATTR uint32_t esphome_get_ipsr(void) {
   uint32_t ipsr = 0;
   __asm volatile("mrs %0, ipsr" : "=r"(ipsr));
   return ipsr;