diff --git a/components/esp_coex/esp32/esp_coex_adapter.c b/components/esp_coex/esp32/esp_coex_adapter.c
index fbd93f6a6ad..65c1fa40021 100644
--- a/components/esp_coex/esp32/esp_coex_adapter.c
+++ b/components/esp_coex/esp32/esp_coex_adapter.c
@@ -46,7 +46,7 @@ void * esp_coex_common_spin_lock_create_wrapper(void)
     void *mux = heap_caps_malloc(sizeof(portMUX_TYPE), MALLOC_CAP_8BIT|MALLOC_CAP_INTERNAL);
 
     if (mux) {
-        memcpy(mux,&tmp,sizeof(portMUX_TYPE));
+        memcpy(mux, &tmp, sizeof(portMUX_TYPE));
         return mux;
     }
     return NULL;
diff --git a/components/esp_coex/esp32c5/esp_coex_adapter.c b/components/esp_coex/esp32c5/esp_coex_adapter.c
index 8588b7348d1..48b871c8a44 100644
--- a/components/esp_coex/esp32c5/esp_coex_adapter.c
+++ b/components/esp_coex/esp32c5/esp_coex_adapter.c
@@ -39,7 +39,7 @@ bool IRAM_ATTR esp_coex_common_env_is_chip_wrapper(void)
 void *esp_coex_common_spin_lock_create_wrapper(void)
 {
     portMUX_TYPE tmp = portMUX_INITIALIZER_UNLOCKED;
-    void *mux = malloc(sizeof(portMUX_TYPE));
+    void *mux = heap_caps_malloc(sizeof(portMUX_TYPE), MALLOC_CAP_8BIT|MALLOC_CAP_INTERNAL);
 
     if (mux) {
         memcpy(mux, &tmp, sizeof(portMUX_TYPE));
diff --git a/components/esp_coex/esp32c61/esp_coex_adapter.c b/components/esp_coex/esp32c61/esp_coex_adapter.c
index 059160f7bab..2778940239d 100644
--- a/components/esp_coex/esp32c61/esp_coex_adapter.c
+++ b/components/esp_coex/esp32c61/esp_coex_adapter.c
@@ -40,7 +40,7 @@ bool IRAM_ATTR esp_coex_common_env_is_chip_wrapper(void)
 void *esp_coex_common_spin_lock_create_wrapper(void)
 {
     portMUX_TYPE tmp = portMUX_INITIALIZER_UNLOCKED;
-    void *mux = malloc(sizeof(portMUX_TYPE));
+    void *mux = heap_caps_malloc(sizeof(portMUX_TYPE), MALLOC_CAP_8BIT|MALLOC_CAP_INTERNAL);
 
     if (mux) {
         memcpy(mux, &tmp, sizeof(portMUX_TYPE));