diff --git a/components/esp32/ld/esp32.ld b/components/esp32/ld/esp32.ld
index 7ecc948303..22544af788 100644
--- a/components/esp32/ld/esp32.ld
+++ b/components/esp32/ld/esp32.ld
@@ -95,7 +95,7 @@ MEMORY
      Start of RTC slow memory is reserved for ULP co-processor code + data, if enabled.
   */
   rtc_slow_seg(RW)  :                org = 0x50000000 + CONFIG_ESP32_ULP_COPROC_RESERVE_MEM,
-                                     len = 0x1000 - CONFIG_ESP32_ULP_COPROC_RESERVE_MEM
+                                     len = 0x2000 - CONFIG_ESP32_ULP_COPROC_RESERVE_MEM
 
   /* external memory ,including data and text */
   extern_ram_seg(RWX)  :             org = 0x3F800000,
diff --git a/components/esp_rom/include/esp32/rom/rtc.h b/components/esp_rom/include/esp32/rom/rtc.h
index 83e621631a..dcb46df8e4 100644
--- a/components/esp_rom/include/esp32/rom/rtc.h
+++ b/components/esp_rom/include/esp32/rom/rtc.h
@@ -45,8 +45,7 @@ extern "C" {
   *************************************************************************************
   *     rtc memory addr         type    size            usage
   *     0x3ff61000(0x50000000)  Slow    SIZE_CP         Co-Processor code/Reset Entry
-  *     0x3ff61000+SIZE_CP      Slow    4096-SIZE_CP
-  *     0x3ff62800              Slow    4096            Reserved
+  *     0x3ff61000+SIZE_CP      Slow    8192-SIZE_CP
   *
   *     0x3ff80000(0x400c0000)  Fast    8192            deep sleep entry code
   *