diff --git a/myis11/src/IRIS_IS3/IS3Comon.cpp b/myis11/src/IRIS_IS3/IS3Comon.cpp
index 0bacaef..b0a1ff3 100644
--- a/myis11/src/IRIS_IS3/IS3Comon.cpp
+++ b/myis11/src/IRIS_IS3/IS3Comon.cpp
@@ -20,8 +20,8 @@ unsigned long long get_system_uptime_ms() {
     struct timespec ts;
     clock_gettime(CLOCK_MONOTONIC, &ts);
     return (unsigned long long)(ts.tv_sec) * 1000 + ts.tv_nsec / 1000000;
-    void Sleep() {
-        usleep(1000); // Sleep for 1 millisecond
+    void Sleep(long ms) {
+        usleep(ms*1000); // Sleep for 1 millisecond
     }
 
 #endif