diff --git a/components/esp_event/esp_event.c b/components/esp_event/esp_event.c
index 9358d910e23..88e0561bcfa 100644
--- a/components/esp_event/esp_event.c
+++ b/components/esp_event/esp_event.c
@@ -1097,7 +1097,7 @@ esp_err_t esp_event_dump(FILE* file)
     portEXIT_CRITICAL(&s_event_loops_spinlock);
 
     // Print the contents of the buffer to the file
-    fprintf(file, buf);
+    fprintf(file, "%s", buf);
 
     // Free the allocated buffer
     free(buf);