diff --git a/mystic/bbs_common.pas b/mystic/bbs_common.pas
index cea806a..9dfb9fd 100644
--- a/mystic/bbs_common.pas
+++ b/mystic/bbs_common.pas
@@ -356,7 +356,7 @@ Begin
     Screen.SetRawMode(True);
   {$ENDIF}
 
-  {$IFDEF WIN32}
+  {$IFDEF WINDOWS}
     Screen.SetWindowTitle (WinConsoleTitle + strI2S(Session.NodeNum));
   {$ENDIF}
 
diff --git a/mystic/bbs_doors.pas b/mystic/bbs_doors.pas
index 1afea92..77a84e3 100644
--- a/mystic/bbs_doors.pas
+++ b/mystic/bbs_doors.pas
@@ -9,7 +9,7 @@ Procedure ExecuteDoor (Format: Byte; Cmd: String);
 Implementation
 
 Uses
-  {$IFDEF WIN32}
+  {$IFDEF WINDOWS}
     Windows,
   {$ENDIF}
   m_Types,
@@ -206,7 +206,7 @@ Begin
   Close (tFile);
 End;
 
-{$IFDEF WIN32}
+{$IFDEF WINDOWS}
 Procedure Shell_DOOR32 (Cmd : String);
 Var
   PI         : TProcessInformation;
@@ -326,7 +326,7 @@ Begin
   {$ENDIF}
   End;
 
-  {$IFDEF WIN32}
+  {$IFDEF WINDOWS}
     If Format = 4 Then
       Shell_DOOR32(Temp)
     Else
diff --git a/mystic/bbs_nodeinfo.pas b/mystic/bbs_nodeinfo.pas
index d7ed127..f873318 100644
--- a/mystic/bbs_nodeinfo.pas
+++ b/mystic/bbs_nodeinfo.pas
@@ -70,7 +70,7 @@ Begin
   Write  (ChatFile, Chat);
   Close  (ChatFile);
 
-  {$IFDEF WIN32}
+  {$IFDEF WINDOWS}
     Screen.SetWindowTitle (WinConsoleTitle + strI2S(Session.NodeNum) + ' - ' + Session.User.ThisUser.Handle + ' - ' + Action);
   {$ENDIF}
 End;
diff --git a/mystic/mpl_execute.pas b/mystic/mpl_execute.pas
index 7c90392..48f373d 100644
--- a/mystic/mpl_execute.pas
+++ b/mystic/mpl_execute.pas
@@ -997,7 +997,7 @@ End;
 
 Procedure TInterpEngine.FileWriteLine (Var F: File; Str: String);
 Begin
-  {$IFDEF WIN32}
+  {$IFDEF WINDOWS}
     Str := Str + #13#10;
   {$ENDIF}
   {$IFDEF UNIX}