diff --git a/components/espcoredump/src/core_dump_elf.c b/components/espcoredump/src/core_dump_elf.c
index 18e24f10946..f0667a52229 100644
--- a/components/espcoredump/src/core_dump_elf.c
+++ b/components/espcoredump/src/core_dump_elf.c
@@ -498,7 +498,7 @@ static int elf_process_task_data(core_dump_elf_t *self)
     core_dump_mem_seg_header_t interrupted_stack = { 0 };
     TaskIterator_t task_iter;
     uint16_t tasks_num = 0;
-    uint16_t bad_tasks_num = 0;
+    uint16_t __attribute__((unused)) bad_tasks_num = 0;
 
     ESP_COREDUMP_LOG_PROCESS("================   Processing task data   ================");
 
@@ -797,7 +797,7 @@ esp_err_t esp_core_dump_write_elf(void)
     core_dump_elf_t self = { 0 };
     core_dump_header_t dump_hdr = { 0 };
     int tot_len = sizeof(dump_hdr);
-    int write_len = sizeof(dump_hdr);
+    int __attribute__((unused)) write_len = sizeof(dump_hdr);
 
     esp_err_t err = esp_core_dump_write_init();
     if (err != ESP_OK) {