diff --git a/main.c b/main.c
index 65f8eef..d8cf450 100644
--- a/main.c
+++ b/main.c
@@ -82,7 +82,7 @@ int gpio_direction(int gpio, const char *direction){
 		perror("Error openng the GPIO path");
 		return -1;
 	}
-	write(fd,gpio, strlen(gpio));
+	write(fd,gpio, strlen(direction));
 	close(fd);
 	return 0;
 	}