diff --git a/source/event_gpio.c b/source/event_gpio.c
index 8eb60ef..b9d70b3 100644
--- a/source/event_gpio.c
+++ b/source/event_gpio.c
@@ -171,6 +171,9 @@ int gpio_export(int gpio)
 
     len = snprintf(str_gpio, sizeof(str_gpio), "%d", gpio); BUF2SMALL(str_gpio);
     ssize_t s = write(fd, str_gpio, len);  e_no = errno;
+    if (DEBUG) && (e_no) { 
+        printf("gpio_export: something went wrong: %s\n", strerror(e_no));
+    }
     close(fd);
     if (s != len)
     {