diff --git a/src/pipes2.c b/src/pipes2.c
index c6a2b02..8ae9d33 100644
--- a/src/pipes2.c
+++ b/src/pipes2.c
@@ -16,7 +16,7 @@
 
 #define GRID_GROESSE_X 200
 #define GRID_GROESSE_Y 60
-#define SLEEP_TIME 0
+#define SLEEP_TIME 40000
 
 #define RED "\033[31m"
 #define GREEN "\033[32m"