diff --git a/SelectableCore.cpp b/SelectableCore.cpp
index eb1e977..d0153dd 100644
--- a/SelectableCore.cpp
+++ b/SelectableCore.cpp
@@ -1098,7 +1098,6 @@ int CSelectableCore::Input( const char * IOName, const char * Data, int Len )
 bool CSelectableCore::Process()
 {
     THandle *   Handle      = NULL;
-    long        Duration    = 0;
 
     // Check all handles
     Handle = FirstHandle;
@@ -1115,8 +1114,7 @@ bool CSelectableCore::Process()
         if (Handle->InBuffer && (Handle->InBuffer->Len() > 0))
         {
             // Check duration since last PortIn
-            Duration = TimePassed( Handle->InStart );
-            if (Duration > Handle->InTimeout)
+            if (Timeout( Handle->InStart, Handle->InTimeout ))
             {
                 // Process Input
                 ProcessBuffer( Handle, true );