diff --git a/GPIO/libgpiod/ring.libgpiod.c b/GPIO/libgpiod/ring.libgpiod.c
index f97ffd719ef2fde9f7cbb785c90fa01c3735448c..f433204994f7c7446b9e7ca0317465a62d503e52 100644
--- a/GPIO/libgpiod/ring.libgpiod.c
+++ b/GPIO/libgpiod/ring.libgpiod.c
@@ -25,9 +25,9 @@ int main(int argc, char **argv) {
    linein = gpiod_chip_get_line(chip,pinin);
    gpiod_line_request_input(linein,"main");
    while (1) {
-  	   if (gpiod_line_get_value(linein))
+      if (gpiod_line_get_value(linein))
          gpiod_line_set_value(lineout,0);
-  	   else
+      else
          gpiod_line_set_value(lineout,1);
-  	   }
+      }
    }