diff --git a/src/os2/app.cpp b/src/os2/app.cpp
index 4d47ed1550..4bebb62925 100644
--- a/src/os2/app.cpp
+++ b/src/os2/app.cpp
@@ -836,13 +836,13 @@ int wxApp::MainLoop()
         while (!Pending() && ProcessIdle())
         {
             HandleSockets();
-            wxUsleep(10000);
+            wxUsleep(10);
         }
         HandleSockets();
         if (Pending())
             DoMessage();
         else
-            wxUsleep(10000);
+            wxUsleep(10);
 
     }
     return (int)svCurrentMsg.mp1;
diff --git a/src/os2/utils.cpp b/src/os2/utils.cpp
index c60c92419b..c2c6d6ef20 100644
--- a/src/os2/utils.cpp
+++ b/src/os2/utils.cpp
@@ -282,7 +282,7 @@ void wxUsleep(
   unsigned long                     ulMilliseconds
 )
 {
-    ::DosSleep(ulMilliseconds/1000l);
+    ::DosSleep(ulMilliseconds);
 }
 
 void wxSleep(