diff --git a/cube/User/Src/counter.c b/cube/User/Src/counter.c
index 5198703..22e99b9 100644
--- a/cube/User/Src/counter.c
+++ b/cube/User/Src/counter.c
@@ -1,6 +1,6 @@
 #include <stdint.h>
 #include <string.h>
-#include <stdlib.>
+#include <stdlib.h>
 
 #include <tim.h>